SEOEncyclopedia

SEO is the work of getting your website to show up, without paying per click, when someone searches Google for something you offer or know about. It stands for Search Engine Optimization.

Its practical meaning fits in one sentence: be the best available answer to a specific question, and make sure the search engine notices. That blends three crafts: technical (Google can read your site), editorial (what you publish actually answers the question) and reputational (other sites cite you).

At Mamífero we call it Search Experience Optimization, because today «searching» also happens on YouTube, on Maps and inside AI chats. Same acronym; much bigger playing field.

SEO stands for Search Engine Optimization. That is the full form people keep searching for.

Close synonyms you will see: organic search, search optimization, and in Spanish-speaking markets posicionamiento web. They all point to the same thing, with slightly different fashions attached.

A detail almost nobody clarifies: the acronym does double duty. «Doing SEO» is the discipline; «an SEO» is the person who does it. So when a job ad says «we are hiring an SEO», it is not a typo: they are looking for someone.

Imagine the internet is a gigantic library and Google is the librarian. You ask, «do you have a book about dinosaurs that eat grass?», and the librarian has to pick, out of millions, which one to hand you first.

SEO is arranging your book so the librarian finds it easily: a clear title on the cover, pages that really talk about grass-eating dinosaurs, sitting on the right shelf, and other kids telling the librarian «that book is awesome».

What you cannot do is stick a cover that says «DINOSAURS» on a book about cars. The librarian notices, gets annoyed and sends you to the back of the shelf. Grown-ups forget that last part too.

Your ranking (or position) is the spot your page occupies in Google's results for a given search, and «SEO positioning» is also the work of improving it. Ranking means you appear; ranking well means you appear up top, where people actually look.

It differs from paid positioning (Google Ads) in that nobody charges you per click: you earn the spot.

There is no button to improve a site's ranking. You find out what your customers search for, build a page that answers each search better than the competition, make sure Google can crawl it, and get other sites to talk about you. And measure per search, not «in general»: nobody is «first on Google». You are first for something.

It works across three stages the search engine runs, and SEO plays a part in all three:

• Crawling: bots like Googlebot travel the web following links. If your page is not linked or you block the bot, it does not exist.
• Indexing: the search engine reads, understands and stores your page in its index. Duplicate, empty or badly implemented JavaScript content can be left out.
• Ranking: when someone searches, the engine orders indexed pages by how well they answer, how trustworthy they look and the experience they offer.

Search engine optimization is about making each step easier: a crawlable site, pages that answer one clear intent, and outside signals of trust. Everything else is a variation on that scheme.

Google uses hundreds of signals, but they group into five questions: what did the person mean? Which pages are relevant? Which are higher quality and more trustworthy? Which are pleasant to use (fast, readable on mobile)? And what context does the searcher have (language, location)?

Doing SEO for Google means working on those five things for your target searches. There is no published secret formula and no «Google SEO score»: what Google does publish is its guidelines and spam policies, which are worth reading before any guru.

A 2026 nuance: first place is no longer just the first blue link. Above it there may be an AI Overview, a map, videos or products. Improving your Google ranking now includes deciding which of those formats you want to appear in.

It gets you found exactly when people need you, without paying for each visit. That is the core benefit and what sets it apart from advertising: an ad switches off when you stop paying; a well-ranked page keeps working.

Other advantages of SEO that get mentioned less:

• It forces you to understand your customer, because you start from what people actually type.
• It builds an asset you own: content and reputation you are not renting from a social network.
• It lowers acquisition cost over time, unlike ads, which tend to get pricier.
• It earns credibility: many people trust an organic result more than one labeled as an ad.

Its real importance depends on your business. If your customers search for what you sell, SEO is basic infrastructure. If nobody searches your category because it does not exist yet, you need to create demand first.

It is a charming redundancy: all SEO is organic. People say «organic» to separate the results Google ranks on merit from the paid ones, which carry a «Sponsored» label.

Organic traffic (or SEO traffic) is the visits that come from those unpaid results. That is why you sometimes hear «organic vs. inorganic SEO»: the inorganic part would be paid search, which is really SEM or Google Ads, not SEO.

Doing organic SEO is the same as doing SEO: useful content, a technically healthy site and a good reputation. If someone offers you «guaranteed organic SEO in 48 hours», the only organic thing will be the way your budget decomposes.

A website's SEO is everything that determines whether that site shows up on Google and where: its technical structure, its content, its internal links and what other sites say about it.

When someone asks «how is my website's SEO?», they are really asking three things:

• Can Google read all of it? (crawling, indexing, speed, mobile)
• Does each page answer a specific search? (titles, copy, intent)
• Does anyone recommend it? (links, mentions, reviews)

Applying SEO to your site is not something you do once at launch, like painting a façade. It is closer to running a shop: you tidy up, refresh the window display and fix what breaks. For a diagnosis, start with an SEO audit.

In digital marketing, SEO is the acquisition channel that brings people from search engines without paying per click. It is one channel among ads, social, email and partnerships, with one special trait: it captures demand that already exists. The person is already searching.

That is why SEO marketing plays well with everything else. The content you write to rank feeds your social posts and emails; your paid campaigns tell you which keywords convert; your social presence generates searches for your brand.

The typical mistake is treating it as an isolated technical task handed to «the website person». In a serious online marketing strategy, SEO decides which of your customers' questions you will answer better than anyone. That is pure marketing, even if it comes with HTML tags.

For a business, SEO is how potential customers find it when they search for what it sells, in its area and language, without relying only on paid ads.

In practice that means choosing which searches you want to show up for (your business's searches, not the ones that sound impressive), having a page that answers each one, and building reputation: reviews, media mentions, industry directories.

A useful clarification: your company's SEO also includes how your name shows up. When someone searches your brand, do they find your site, your Google profile with good reviews and your social accounts? Or a five-year-old complaint? That search is the one that converts most, and the one looked after least.

In computing and programming, SEO means the same as in marketing: search engine optimization. What changes is the focus. For a developer, SEO is a set of technical site requirements:

• Semantic HTML (one H1 per page, headings in order, real links).
• Correct title, meta description, canonical and hreflang tags.
• Rendering the search engine can read, especially on JavaScript sites.
• Speed, Core Web Vitals and a working mobile version.
• Sitemap, robots.txt and HTTP status codes used properly.

If you work in tech, think of it as accessibility for robots: a site that a screen reader understands well tends to be a site Google understands well. For the detail, see the technical SEO chapter.

The most common types of SEO break down like this:

• On-page: what you optimize inside each page (titles, copy, headings, images).
• Off-page: what happens outside your site (links, mentions, reputation).
• Technical: making the site crawlable, indexable and fast.
• Local: showing up on Maps and «near me» searches.
• E-commerce: product pages, categories and filters in online stores.
• International: versions per country and language.
• Content: planning what to publish to cover a whole topic.

And there is another classification, by ethics: white hat (by the rules) and black hat (tricks). The categories help split the work, but Google does not see them separately: it sees a page that helps or does not.

SEO optimization is every concrete adjustment that makes a page perform better in search: rewriting a title, compressing images, merging two pages that compete with each other, adding structured data, fixing a broken link.

The difference from «doing SEO» is scale. SEO is the strategy; optimization is the execution, piece by piece. Yes, «SEO optimization» technically means «search engine optimization optimization», but nobody complains anymore.

A rule that saves a lot of work: optimize what almost works first. A page sitting in position 8 for a valuable search usually climbs more from one good tweak than a brand-new page starting from zero.

No, but the playing field moved. SEO has been «dying» in headlines for twenty years, and the companies that do it well keep eating from it.

What is closing is one specific game: capturing generic informational searches with content built for the algorithm. In the United States, about 58% of Google searches already end without a click, and with an AI summary on top that rises to around 83%.

What stays alive, and grows in value: transactional searches, local searches, searches for your name (which gain clicks while generic ones lose them) and being the source the AI cites. Less total traffic, better traffic. The future of SEO looks a lot like brand building.

SEO gets visits from organic results without paying per click. SEM (Search Engine Marketing) gets visits by paying for ads on the search engine, like Google Ads. One you earn, the other you rent.

In practice:

• Speed: SEM works the same day; SEO takes months.
• Cost: SEM charges for every click, always; SEO costs work and time, but the click is free.
• Durability: switch SEM off and you disappear; stop SEO and you decline slowly.
• Trust: many people skip ads and click the organic results.

Watch the meaning: in English, SEM is sometimes the umbrella that includes SEO; in Latin America it almost always means «the paid part». The sensible approach is using both: SEM to learn fast which keywords sell, and SEO to stop paying for them.

It depends on your urgency and your horizon. If you need sales this month, SEM: SEO will not save your quarter. If you want to lower acquisition costs over two years, SEO: SEM never gets cheaper on its own.

A rule we use with small businesses: SEM to validate, SEO to capitalize. Run ads for a few weeks to discover which searches bring customers who buy, and those same searches become your organic content plan.

The answer nobody gives: for many small businesses, the best option is neither SEO nor SEM, but a flawless Google Business Profile and reviews. That is local SEO, costs almost nothing and it is what most people searching for a nearby service see.

Paying for Google Ads (formerly AdWords) does not improve your organic rankings. Google keeps both systems separate and has said so many times: buying ads does not lift you in the natural results, and not buying them does not push you down.

Where they do help each other is information. Ads tell you, with real conversion data, which searches bring customers; SEO tells you what content answers best, and makes those clicks cheaper in the future.

The difference between SEO and AdWords in one line: with Ads you pay to be on top while you pay; with SEO you work to deserve being on top. If someone sells you «SEO advertising», ask what exactly it is: either ads under another name or SEO at another price.

Google is not paid to show you in organic results. There is no price per click in SEO and no fee to «move up». CPC (cost per click) belongs to ads.

What you do pay for is the work: someone's time to audit, write, fix and earn links, plus the tools. You can do it yourself (paying with time) or hire it (paying with money).

So the useful question is not «do you pay for SEO?» but «what does it cost me to win a customer through SEO compared with Ads?». Early on, SEO is usually more expensive per customer; over the months the cost drops, because the page keeps bringing people in without charging per visit.

PPC means pay per click: the advertising model where you only pay when someone clicks your ad. Google Ads, Microsoft Ads and social ads work this way.

SEO vs. PPC is the same conversation as SEO vs. SEM: one buys instant visibility, the other builds it. The combination that performs best uses PPC as a lab: you test headlines and offers in ads, see which have better click-through and conversion, and apply what you learn to your organic pages.

A practical detail: even if you already rank first organically for your own brand, it sometimes still makes sense to bid on your name, because competitors may be buying it. It is the exception that proves the rule: measure before deciding.

A neighborhood bakery, two paths:

• SEM: it pays for a Google ad on «birthday cake delivery [neighborhood]». It appears on top with a «Sponsored» label from today and pays every time someone clicks.
• SEO: it writes a «Birthday cake delivery in [neighborhood]» page with photos, prices, flavors and delivery area; optimizes its Google profile with reviews; and shows up on the map and in organic results within months, without paying per click.

Another combined SEO and SEM strategy: a bike shop runs ads for «folding electric bike», notices people keep asking about battery range, and publishes a guide comparing ranges. The guide starts to rank, and the ads can move to pricier searches the guide has not won yet.

Every channel has its acronym, and every new acronym brings its own invoice. The quick dictionary:

• SEA (Search Engine Advertising): paid search. Common in Europe where Latin America says SEM.
• SEM: depending on whom you ask, SEO + SEA, or only the paid part.
• SMO (Social Media Optimization): optimizing profiles and posts for social networks.
• ASO (App Store Optimization): SEO for app stores.
• AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization): showing up in answers from assistants and AI chats.
• SXO (Search Experience Optimization): making the search end in a good experience, not just a click.

Our take: the new acronyms describe real channels, but the fundamentals did not change. Clear content, sourced data and a brand people search by name work on every engine.

CRO (Conversion Rate Optimization) is improving the share of visits that end in a purchase, booking or inquiry. SEO brings people in; CRO makes sure they do not leave empty-handed.

Separating them is an expensive mistake. Doubling traffic with SEO takes months; doubling conversion on a page that already gets visits sometimes takes an afternoon: a visible button, a clear price, a shorter form.

They also feed each other: a page that answers well and converts well tends to hold people's attention, and that experience is exactly what search engines try to reward. That is why in our plans SEO and CRO go together from the smallest tier.

Much more than agencies that sell only one of the two admit. UX (user experience) is how easy and pleasant your site is to use; SEO is getting found. If people find you and the site is a maze, you lose the visit that cost so much to win.

Google measures part of the experience directly (speed, visual stability, mobile version, no intrusive pop-ups) and the rest indirectly, through whether people find what they were looking for.

For UX design with SEO in mind, three rules: the answer to the search up top and straight to the point; navigation that also works for robots (real links, clear menus); and nothing covering the content as soon as the page opens. A site that respects people's time tends to rank better.

They should be born together. Designing a site and then «adding SEO» is like building a house and then asking where the pipes go: doable, but you will be breaking walls.

What design and development decide, and SEO suffers from (or thanks them for):

• The architecture: which pages exist and how they link.
• URLs and the migration from the old site (where most traffic gets lost).
• The weight of images, fonts and scripts, which sets the speed.
• Whether content is rendered in HTML or depends on JavaScript.

If you are about to build new web pages, have SEO in the conversation from the wireframe. And if your designer offers «SEO design» included, ask what it includes: sometimes it is just installing a plugin.

They are two halves of the same job. Content marketing decides which stories and answers a brand publishes to earn its audience's trust; SEO makes sure those pieces answer real searches and that the search engine finds them.

Content without SEO is a good book with no title on the cover. SEO without content is a beautiful cover on an empty book. The SEO and content strategy that works starts from your customers' questions, picks the ones you can answer better than anyone and publishes them with clear structure.

A quick test for your plan: if a piece answers no search and nobody would share it, it is not content, it is filler. And filler no longer ranks: Google's systems are built precisely to detect it.

In every stage, with different searches at each one:

• Top (discovery): «what is mortgage life insurance». High volume, low purchase intent.
• Middle (evaluation): «best mortgage life insurance for small businesses». Comparisons, alternatives, prices.
• Bottom (decision): «quote mortgage life insurance [your brand]». Low volume, high intent.

Inbound marketing uses SEO to attract at the top and nurture down to the bottom with emails and content. It works, but there is an uncomfortable fact: top-of-funnel informational searches are exactly the ones losing the most clicks to AI summaries.

If your SEO generates leads, measure by stage. A guide that brings a thousand visits and no inquiries may be valuable (brand) or may be vanity; a pricing page with a hundred visits and ten inquiries is almost always gold.

Yes, and lately it works the other way too: brand has become one of the best SEO assets. When an AI summary appears on Google, searches containing a brand name gain clicks (around 18% more) while generic ones lose them (close to 37%).

Translation: the person who types your name reaches you; the person who types a generic category stays reading Google's answer. That is why SEO and branding can no longer be separated.

How they meet in practice: content with its own voice that people remember, media appearances, a name that is easy to type and search, and a brand page that answers «who are you, what do you do, what does it cost». Someone searching you by name is the best signal there is.

Good SEO always follows the same order, even when the tools change:

• 1. Find out what your customer searches for. List the questions and products people type into Google about your field, with their volume.
• 2. Assign one page to each intent. One search, one page that answers it better than what ranks today.
• 3. Fix the technical base. Google can crawl and index everything, it loads fast and looks good on a phone.
• 4. Write and optimize. Title, headings, useful copy, light images, internal links.
• 5. Earn reputation. Reviews, mentions and links from sites your audience respects.
• 6. Measure and adjust. Search Console every week; tune what is close to climbing.

How do you get good SEO without losing your mind? Do little, but in that order. Skipping step 1 is the number one cause of beautiful websites nobody finds.

The improvements that pay off most, ordered by effort:

• Rewrite titles and descriptions on your most visited pages so they promise exactly what the page delivers.
• Check Search Console for queries where you rank 5 to 20: they are the easiest to lift. Improve those pages.
• Merge pages that compete with each other (two near-identical articles weaken each other).
• Fix what is broken: linked 404 errors, redirect chains, pages that will not index.
• Lighten the page: images in WebP or AVIF, fewer third-party scripts.
• Link internally from your strong pages to the ones you want to push.

You do not need to rebuild your site to boost its SEO. Almost always, the improvement lives in what already exists and nobody has reviewed since it went live.

The SEO techniques that work in 2026 are surprisingly boring, which is why almost nobody executes them fully:

• Answer the question in the first lines, with no filler intro.
• A title that matches how people search, not how your company talks.
• Deliberate internal linking, not automatic.
• Your own data: a figure, a photo, a case, something only you can publish.
• Update old content instead of publishing similar new content.
• Earn real mentions in media and industry sites.

Best practices in one sentence: build the page you would want to find. Techniques that promise shortcuts (mass-generated text, bought links, tricks to fool the bot) work for a while and then charge interest.

Google does not publish a weighted list, and anyone selling you «the 200 ranking factors» is selling a tidy invention. What is known, because Google documents it, is which families of factors matter:

• Relevance: your page answers what was searched, with the words and concepts of that topic.
• Quality and trust: experience, expertise, authority and trustworthiness of the content and its publisher.
• Links: how many and, above all, which sites cite you.
• Page experience: speed, mobile, security, no annoying interruptions.
• Context: the searcher's location, language and history.

And one factor that is on no list yet decides almost everything: whether there is a page clearly better than yours for that search. Rankings are comparative.

An SEO strategy is the decision of which searches you will win, with which pages and in what order, according to what matters to your business. It is not a list of technical tasks: it is a bet.

How to build one, in five questions:

• Which searches do your customers make right before buying?
• Which of those can you realistically win, given who ranks today?
• Which pages do you need to create, improve or merge?
• What technical groundwork must be fixed first for all of that to work?
• How will you measure whether it works, in sales and not just visits?

SEO strategies that fail usually fail at the second question: they aim at the industry's most searched word, where the giants compete, instead of the hundred specific searches nobody is answering well.

An SEO plan is the strategy turned into a calendar: what happens each month, who does it and how you know it worked. A healthy roadmap for a mid-sized site looks roughly like this:

• Month 1: technical audit, critical fixes, keyword research, baseline metrics.
• Months 2 and 3: optimize pages that already get traffic; first new pages for high-intent searches.
• Months 4 to 6: content to cover the whole topic, internal linking, first reputation actions.
• Every month: Search Console review, short report and reprioritization.

An SEO project without a plan ends in «we did lots of things» and no attributable result. A plan without reviews ends as a beautiful document nobody opens in March.

An SEO campaign is a time-bound effort to rank a topic, product or season: for example, «show up for Mother's Day gifts» or «win the searches for our new service launch».

Unlike an ad campaign, it does not switch on and off. You have to start weeks or months ahead, because rankings take time. What it does share with a classic campaign is having a goal, a date and measurement.

A typical SEO campaign includes a strong main page, supporting content linking to it, some outreach to earn mentions, and a review afterwards. The trick almost nobody uses: reuse the same URL every year. A «/mothers-day» page that gets updated accumulates authority; a new one each year starts from zero.

Three SEO examples that make sense without jargon:

• A dental clinic that publishes one page per treatment with a reference price, duration and FAQs. It shows up when someone searches «how much does a filling cost in [neighborhood]», because it answers exactly that.
• An online hardware store that adds real measurements, uses and photos to every product page, instead of the manufacturer's description copied on a thousand sites.
• A consultancy that publishes a study with its own data; the media cite it, and those links lift the whole site.

As a digital marketing strategy they share one thing: they answered a question better than the competition. This very encyclopedia is an example: we gathered real searches about SEO and answered them one by one.

Start with three free things, in this order:

• Connect your site to Google Search Console. It shows which searches already bring you people and which errors Google sees. It is the best SEO teacher there is, because it talks about your site.
• Read Google's official SEO Starter Guide. It is short, clear and sells nothing.
• Improve one single page. Pick the most important one for your business and make it the best possible answer to what your customer searches.

SEO fundamentals fit in an afternoon: crawling, indexing, relevance, authority. The hard part is not understanding them, it is applying them consistently. If you want to go from zero without getting lost, read this encyclopedia in order: it is a basic SEO course in disguise.

Yes. SEO itself is free: Google does not charge to rank. What it costs is time and judgment, and you can supply both.

Decent DIY SEO uses only free tools: Google Search Console, Google Analytics, PageSpeed Insights, the free version of Screaming Frog (500 URLs) and the search engine itself to see what ranks. With that you can do 80% of a small business's SEO.

What is not free: the time it takes to learn and do it, and rookie mistakes (deleting pages that brought traffic, changing URLs without redirects). Be wary too of «free online SEO» offers that ask for access to your site: free usually means you, or your domain, are the product.

The honest answer: between three and twelve months to see business results, depending on how much competition you have and where you start. A technical fix can show up in weeks; winning a contested search can take a year.

What moves the timeline:

• Site age and reputation: a domain with history and links moves faster than a brand-new one.
• Competition: ranking for «employment lawyer» in a big city is not the same as «employment lawyer for airline pilots».
• Starting point: if Google could not index your site, fixing that brings quick jumps.

Distrust anyone promising first place in 30 days, and also anyone who cannot tell you what you will see in the first 90. A good plan has intermediate milestones: more indexed pages, more impressions, better average positions, before sales.

The SEO mistakes we see most, and that cost the most money:

• Changing sites or URLs without 301 redirects. The fastest way to lose years of rankings in a day.
• Leaving the site blocked with «noindex» or robots.txt after launch (yes, it happens more than you think).
• Having several pages for the same search, competing with each other.
• Writing for the algorithm: bloated copy, repeated keywords, endless intros.
• Ignoring mobile, where most searches happen.
• Measuring only traffic, not which traffic converts.
• Hiring whoever guarantees results.

The mistake nobody names: doing nothing with the data you already have. Search Console has been showing you problems and opportunities for months in a panel nobody opened.

Here is a short SEO checklist that covers the essentials. If everything is green, you are ahead of most sites:

• The site is verified in Search Console with no serious indexing errors.
• Each important page has a unique title and a meta description that invites a click.
• There is one H1 per page and headings follow a logical order.
• URLs are short, readable and free of unnecessary parameters.
• There is an XML sitemap and robots.txt blocks nothing important.
• The site uses HTTPS and works well on mobile.
• Images have alt text and are lightweight.
• There are no broken internal links or redirect chains.
• Duplicate pages have their canonical tag.
• Your business has a complete Google Business Profile.

For a finer technical checklist, see the step-by-step SEO audit.

Programmatic SEO is creating many pages from a template and a database to answer searches that share the same shape: «flights from Santiago to [city]», «weather in [town]», «[tool] vs [tool]».

Done well it is very powerful: travel, real estate and comparison sites live on it. Done badly it is spam at scale: thousands of near-identical pages that add nothing, which Google explicitly targets with its scaled content abuse policy.

The test for which side you are on: does each page have its own useful data that is not on the page next to it? If only the city name changes and everything else is identical, it is not programmatic SEO; it is photocopying.

Part of it, yes; the judgment, no. What automates well is the repeatable: crawling the site for errors, tracking rankings every day, drafting metadata, alerting when something breaks, assembling reports.

What does not automate: deciding which searches are worth it for your business, writing something the competition does not have, getting a journalist to cite you, judging whether a page is good. Bots promising «SEO on autopilot» usually fail right there, and along the way they publish content that hurts your site.

Our model is exactly that split: our own tools handle the repeatable (Pidge audits, Seonia optimizes metadata, Cenit looks after Google profiles) and people bring judgment and check everything before publishing. Automating without supervision is the most efficient way to make mistakes at scale.

AI is a great SEO assistant and a terrible boss. Where it helps:

• Grouping thousands of keywords by intent in minutes.
• Drafting titles and meta descriptions for review.
• Summarizing long technical audits and prioritizing errors.
• Spotting gaps: which customer questions your site does not answer.
• Generating structured data and reviewing code.

Where it hurts: publishing mass-generated, unreviewed text. Google says it does not penalize content for being made with AI, but for being useless or produced to manipulate rankings, and unsupervised AI produces exactly that at high speed.

SEO writing assistants and AI chats help you work faster, not think less. If you would not sign a text with your own name, do not publish it under your company's.

Keywords are the phrases people type into the search box: «women's hiking boots», «how to renew a passport», «seo». They are SEO's raw material, because they tell you what gets searched, how much and with what intent.

What matters is not the word itself but the intent behind it: informational (I want to know), commercial (I am comparing), transactional (I want to buy) or navigational (I am looking for a specific site). «Best hiking boots» and «buy hiking boots size 8» are cousins, but they call for different pages.

The best keywords for SEO are not the most searched ones, but those combining reasonable volume, intent close to your sale and competition you can beat. This encyclopedia was built that way: from almost two thousand real keywords about SEO.

The method we use, with free and paid tools:

• Start with your customers: note how they ask you things on WhatsApp or the phone. Those are real keywords, unfiltered by agency language.
• Look at the search engine: Google autocomplete, «People also ask» and related searches at the bottom.
• Use Google Ads Keyword Planner (free with an account) for approximate volumes.
• Check Search Console: which searches already show your pages, even if they are not clicking yet.
• If you have a budget, Semrush, Ahrefs and similar tools give you volumes, difficulty and your competitors' keywords.

Then group by intent (not by exact wording) and assign one page to each group. Keyword research does not end in the spreadsheet: it ends when every group has an owner page.

The long tail is long, specific searches, each with little volume but a huge number of them in total: «waterproof women's hiking boots size 8 Santiago» instead of «boots».

Chris Anderson popularized the concept in 2004 to explain how online catalogs sell a lot by adding up niche products. In SEO it works the same way: each long search brings few people, but with crystal-clear intent, less competition and better conversion.

One fact that makes it even more valuable today: searches are getting longer, because people got used to writing to AI chats as they would to a person. A good long-tail strategy answers complete questions, not loose words. Like this page, which exists because every one of its questions is long tail.

No. The ideal «keyword density» (the famous 2% or 3%) is a myth that survives because it is easy to measure. Google has understood synonyms, topics and context for more than a decade; counting repetitions tells it nothing useful.

What does matter: the main phrase appears where it makes sense (title, first paragraph, some heading) and the text covers the topic with the words an expert would naturally use.

What does hurt: forcing the keyword in over and over. It has a name in Google's policies, keyword stuffing, and it is on the list of spam practices. If your text sounds like a robot when read aloud, lower the dose.

Cannibalization happens when two or more pages on your own site compete for the same search. Google does not know which one to show, alternates between them, and none gets as high as a single strong page would.

Symptoms: in Search Console you see different URLs appearing for the same query depending on the day, or a new page «stole» traffic from an old one without adding anything.

How to fix it:

• Merge the pages into a better one and 301-redirect the others.
• Differentiate the intent: one page for «what is», another for «price».
• Canonicalize if they are almost identical for technical reasons (filters, versions).

It is one of the most common problems on blogs with years of history: five posts about the same thing, none of them good.

SEO content is any text, image or video designed to answer a specific search and show up for it. An article, a product page, a service page or a guide can all be SEO content.

What sets it apart is not the number of keywords but the intent: it starts from a real question and answers it clearly, completely and in a way that is easy to find within the page.

A simple template for SEO content that works:

• The direct answer in the first two lines.
• Then the development: context, steps, examples, data.
• Headings that work as a table of contents.
• Something only you can add: your experience, your data, your photo.

Optimizing existing SEO content almost always pays off more than writing new articles on the same subject.

SEO writing (or SEO copywriting) is writing texts that answer a search and that the search engine can understand, without ceasing to be good for the person reading them.

SEO writing rules that actually matter:

• Answer first. If someone asks «how long does it take», the first sentence says how long.
• Clear sentences and short paragraphs. They read better on mobile and are easier for AI summaries to extract.
• Headings that anticipate. Someone skimming should understand the text from the subheads alone.
• The customer's vocabulary, not the company's.
• Sourced data instead of adjectives.

What no longer works: 1,500-word texts for a question answered in a hundred. The ideal length is whatever the answer needs, and not one line more.

Semantic SEO starts from the fact that Google no longer looks for words but for meanings: it understands entities (people, places, concepts) and how they relate. That is why whoever covers a whole topic ranks better than whoever repeats a phrase.

A topic cluster is the practical way to do it: a pillar page covering a broad topic and several satellite pages going deeper into subtopics, all linked to each other. The «local SEO» pillar links to «Google Business Profile», «reviews», «NAP», and each one links back to the pillar.

That shows the search engine your site knows the subject, not just a keyword. This encyclopedia is one giant cluster: every tile answers a question and links to its neighbors.

Evergreen content is content that stays useful years after publication: «how to renew a passport», «what is a slug», «how to care for a bonsai». It does not depend on news or a season.

SEO loves it because it accumulates visits, links and authority over time, while a news story lives for a week.

Two nuances almost nobody mentions: first, evergreen does not mean «publish and forget»; it needs periodic review so data, screenshots and prices stay current. Second, informational evergreen content is exactly what suffers most from AI summaries, because the simple answer already appears on top. So today it pays to include something AI cannot summarize: experience, tools or original data.

It helps if it answers what your customers search for; it does not help if it is a company diary. A blog for SEO is a way to publish new pages that capture informational searches and lead people toward what you sell.

What makes a blog count:

• Posts answering real questions, each with a clear intent.
• Links from the blog to your service or product pages.
• Updating the posts that work instead of writing similar ones.

What turns it into dead weight: publishing to tick a box («we need two posts a month»), topics your customers do not search, and dozens of weak entries that dilute the site's quality. Ten excellent posts beat a hundred mediocre ones, and they cost less.

Transition words are connectors like «however», «therefore», «in addition», «first of all» or «for example». They link ideas and make a text flow.

Yoast SEO measures them in its readability analysis and wants a share of your sentences to include them (around 30%). That is why so many people search for them: the traffic light turns orange and needs fixing.

The answer Yoast does not give you: Google does not rank on connectors. It is a style aid, useful for writers who produce choppy sentences, but not a ranking factor. If your text reads well, ignore the light. If you stuff it with «furthermore» to turn it green, you will rank the same and read worse.

They do not raise your position, but they can raise your clicks. Google may show emojis in titles and descriptions when it finds them relevant, and a well-placed ✅ or 📍 stands out in a list of grey results.

Caveats:

• Google decides whether to show them; sometimes it strips them.
• Overused, they look like spam and reduce trust.
• In serious sectors (health, finance, legal) they can backfire.
• They do not replace words: a 🍕 does not rank for «pizza».

Sensible use: one per title or description, as a visual cue. On social networks and YouTube they work differently and are part of the language. On Google they are salt: a pinch enhances, a lot ruins.

In a newsroom, SEO decides whether a story is read by anyone beyond your followers. For journalists, the essentials are:

• An SEO headline different from the front-page one when needed: the homepage headline can be witty; the one Google sees must say what the story is about, in the words people use.
• The most important thing first, the good old inverted pyramid: exactly what Google News and AI summaries look for.
• Article structured data, an identified author and a visible date.
• Updating the same URL for developing stories instead of publishing ten near-identical ones.

Something new has been added: Google lets readers mark outlets as «preferred sources», and publishers can ask for it with a button. In editorial SEO increasingly shaped by AI, being chosen by the reader is worth more than any headline trick.

On-page SEO (or on-site SEO) is everything you optimize within your own pages so they answer a search well: the title, meta description, headings, copy, images, internal links, URLs and structured data.

It refers to what depends 100% on you. That is why it is the first place to look: you need nobody to link to you and no waiting on Google to fix it.

On-page SEO techniques that make a difference, with examples:

• A title that says what the person searches: «Adult swimming lessons in Maipú», not «Welcome».
• A first paragraph that answers without detours.
• Headings that organize the content like a table of contents.
• Links to your related pages with descriptive text.

To check your on-page SEO, any audit tool or free checker flags the basics in minutes.

On-page SEO is what you do inside your site: content, titles, structure, speed. Off-page SEO is what happens outside your site and talks about you: links from other sites, media mentions, reviews, brand presence.

An easy way to remember it: on-page is your résumé; off-page is your references. You write the résumé and can improve it today. References depend on others, and are earned with time and good work.

You need both. A perfect site nobody recommends competes poorly for contested searches; a heavily linked site whose pages answer nothing wastes its authority. If you have to pick a starting point, start with on-page: it is cheaper, faster and makes off-page work pay more.

The SEO title (the title tag or meta title) is the text that appears as the blue link on Google and in the browser tab. It is probably the most important line on your page: it decides whether you appear and whether you get the click.

The ideal length is 50 to 60 characters: Google truncates by pixel width (about 600 pixels), not by exact count, so a character counter is a guide, not a law. Put what matters first.

How to write a good title:

• The main search, phrased the way people phrase it.
• A differentiator: price, place, year, «guide», «free».
• Your brand at the end, if it fits.

Worth knowing: Google rewrites titles when it thinks they do not describe the page well. If that happens often, your title promises something the content does not deliver. In WordPress you set the SEO title in your plugin (Yoast, Rank Math), not in the post title.

The meta description is the short text that may appear under the title in Google's results. It does not directly affect your position, but it does affect whether people click: it is your two-line shop window.

Recommended length: 120 to 160 characters, so it is not cut off on desktop or mobile.

A good SEO description:

• Summarizes what the person will find and why it is worth it.
• Includes the main search (Google bolds it when it matches).
• Ends with a reason to click: a fact, a price, a «step by step».

Honest warning: Google very often replaces the meta description with a snippet from your page it considers more relevant for each search. Write it anyway: when Google uses it, it works for you, and when it does not, it pushes you to make your first paragraph good too.

Meta tags (or metadata) are lines in a page's HTML that give information to browsers and search engines without showing on screen. The ones that really matter:

• title: the title shown on Google. The most important one.
• meta description: the description that may appear under the title.
• meta robots: tells Google whether to index the page («noindex»).
• canonical (technically a link, not a meta): which version of a page is the original.
• viewport: makes the site adapt to phones.
• Open Graph and Twitter: how your page looks when shared on social media.

And the one that no longer works: meta keywords. Google has ignored it since 2009, so stuffing it with words only hands your strategy to competitors. SEO tag generators help you not forget any, but the text still needs to be written with judgment.

The H1 is a page's main heading: its visible headline. H2s are the subheads of each section and H3s the subheads within those sections. Together they form the skeleton of the content, like a table of contents.

Heading best practices for SEO:

• One H1 per page, clearly stating what it is about. Google tolerates several, but one is clearer for everyone.
• H2s and H3s in logical order, without skipping levels for looks.
• Descriptive, not decorative headings: «Filling prices in 2026» works; «What you need to know» does not.
• Do not use headings for formatting text that is not a title.

This page has one H1 («SEO Encyclopedia»), one H2 per chapter and one H3 per question. If you read only the headings, you understand the whole thing. That is the test.

The slug is the final part of a URL that identifies the page: in «mamiferolab.com/all-about-seo», the slug is «all-about-seo». An SEO-friendly URL is short, readable and describes the content.

Rules for a good slug:

• Lowercase, words separated by hyphens, no accents or special characters.
• Only the important words: «/adult-swimming-lessons», not «/2026/09/23/post-id=4815-adult-swimming-lessons-and-more».
• No dates if the content is evergreen.
• Stable: changing a published slug requires a 301 redirect.

In WordPress you edit the slug in the post panel (Yoast and Rank Math show it in their preview). And one tip that prevents drama: decide your URL structure before launch. Changing it later is the riskiest SEO operation for losing traffic.

«SEO friendly» means a site, template or text is built so search engines can crawl, understand and index it without obstacles. It is another way of saying «optimized for SEO».

An SEO-friendly site has readable URLs, tidy HTML, editable titles, fast loading, works well on mobile and does not hide its content behind JavaScript or images.

Beware the sales label: almost every WordPress theme, site builder and agency claims to be «SEO friendly». It is like a restaurant calling itself «tasty»: it tells you nothing until you try it. Ask whoever sells it for a demonstration in Search Console or an audit of a real site built with that tool.

Images help SEO in two ways: they help your page load fast (or sink it if they are heavy) and they can appear on their own in Google Images and visual results.

The essentials of image optimization:

• Alt text: describe the image for whoever cannot see it, whether a person using a screen reader or a search engine. «Mille-feuille cake with dulce de leche, top view», not «image1».
• A descriptive file name before uploading.
• Modern formats (WebP or AVIF) at their real display size: do not upload a 4,000-pixel photo to show it at 400.
• Declared width and height, so the page does not «jump» while loading.
• Lazy loading for images further down the page.

Your own photos beat stock images: Google has already seen that stock photo on a thousand sites.

Internal links (interlinking) go from one page on your site to another page on the same site. They are SEO's circulatory system: they show the search engine which pages exist, which matter and how they relate.

To make them work:

• Use real links, an a tag with an href; buttons that navigate with JavaScript are sometimes not followed by bots.
• Descriptive anchor text: «see swimming lesson prices», not «click here».
• Link from strong pages to the ones you want to push.
• No orphaned important pages: if nothing links to a page, Google takes longer to find it or treats it as secondary.

The footer and menu are internal links too, but they count for less than a link inside the text, where context explains why the destination is worth visiting.

Anchor text is the clickable text of a link. It tells the search engine what the destination page is about: a link that says «local SEO guide» is a much better clue than one that says «here».

Link juice is the informal way of talking about the authority a link passes from one page to another, the idea behind Google's original PageRank. A high-authority page linking to you passes on some of that strength.

Two warnings: repeating the exact same anchor text across many external links looks artificial and is a classic sign of bought links; and links marked nofollow, sponsored or ugc pass little or nothing, as Google decides. For internal links, on the other hand, descriptive and varied anchors are simply good work.

Breadcrumbs are the navigation trail showing where you are on a site: «Home › Labs › Dicseonary». They help people go back and help search engines understand the hierarchy of your pages.

For SEO they help in three ways: they create orderly internal links, they reinforce the site's structure and, with BreadcrumbList structured data, they spell out that hierarchy to Google explicitly.

How to add them: in WordPress, Yoast SEO and Rank Math include a breadcrumbs block or function with markup built in; in online stores, almost every theme shows them on categories and products. Use them mostly on sites with several levels (stores, big blogs, directories). On a one-page landing they add nothing.

Site architecture is how a site's pages are organized and connected: which sections exist, what sits inside what, and how many clicks separate the homepage from each page. It is the house plan before the decoration.

A good SEO structure is:

• Flat: important pages are a few clicks from the homepage (ideally three or fewer).
• Logical: categories that reflect how people search, not how your company is organized internally.
• Duplicate-free: one page per intent, not three versions of the same thing.
• Backed by URLs consistent with that hierarchy.

The classic mistake is the org chart turned into a menu: «About us, Divisions, Commercial Management…». Nobody cares about your org chart. Organize by what people come looking for, and the site explains itself.

Yes, if it is designed for it. Many landing pages are built for paid campaigns: little text, a form and nothing else. They work with ads, but compete poorly in organic search because they do not answer the query with enough content.

An SEO landing page needs what Google rewards: a clear title, copy explaining what you offer and addressing typical doubts, FAQs, proof (reviews, cases) and links from the rest of the site.

About one-page websites (everything on a single page): they can rank for your brand and one or two main searches, but they have a ceiling. A single URL cannot be the best answer to twenty different searches. As the business grows, the healthy move is giving each service its own page.

The SERP (Search Engine Results Page) is the results page Google shows after a search. Today it is much more than ten blue links: it can include an AI summary, ads, a map with businesses, videos, images, products, «People also ask» and news.

A snippet is how each result looks: title, URL and description text. Featured snippets are answers extracted from a page that Google shows in a box at the top, and rich results add stars, prices or dates thanks to structured data.

That is why «what position am I in?» is no longer enough. The useful question is «what does the person see on the SERP for my search, and where on that screen do I appear?».

CTR (click-through rate) is the percentage of people who click your result after seeing it. If your page appeared 1,000 times on Google and got 50 clicks, your CTR is 5%. You measure it in Google Search Console, per page and per query.

CTR depends heavily on position (the first organic result takes a big share of clicks, the tenth almost none) and on what sits above: with an AI summary on top, the first result can lose more than half the clicks it would get without it.

How to improve it without moving up:

• Titles that promise something specific (a number, a year, a place, a price).
• Meta descriptions that invite the click.
• Structured data adding stars or prices.
• Readable URLs.

If a page gets lots of impressions and little CTR, the problem is almost always its title.

Technical SEO is the part of SEO that ensures search engines can crawl, render, index and understand your site without friction. It is the plumbing: nobody admires it, but if it fails, everything else floods.

It includes, among other things: correct HTTP status codes, clean redirects, sitemap and robots.txt, canonicals, speed and Core Web Vitals, the mobile version, HTTPS, structured data, hreflang for multilingual sites and JavaScript handling.

A good technical SEO checklist is reviewed with a crawler (Screaming Frog, Sitebulb or, in our case, Pidge, which crawls entire sites and turns every finding into a task) and with Search Console reports. The backend matters as much as the front end: a clumsy server configuration can ruin a beautiful site.

Indexing means Google stores your page in its index, the database it pulls results from. A page that is not indexed cannot appear for any search, however good it is.

The most common reasons Google does not index a page:

• It has a «noindex» tag (sometimes left over from development).
• It is blocked in robots.txt or returns an error.
• It is almost identical to another page and Google chose the other as canonical.
• Google crawled it but judged it low value («Crawled – currently not indexed»).
• Nothing links to it and Google never found it.

Search Console's «Pages» report tells you which case applies. And yes: Google also indexes PDFs, which can rank like any page. If you have a catalog in PDF, give the file a good title and, better still, an HTML version.

A crawler (or spider) is a program that travels the web following links and downloading pages. Googlebot is Google's crawler; Bingbot is Bing's; and today there are also crawlers from AI companies, such as OpenAI's GPTBot or Anthropic's ClaudeBot.

In SEO, «crawler» also refers to tools that simulate that journey through your site to find problems: Screaming Frog, Sitebulb, the crawlers in Semrush or Ahrefs. They show broken links, redirects, duplicate titles and orphan pages, just as a search engine would see them.

Two related concepts: crawl budget (how many pages Google is willing to crawl on your site), which only matters on sites with tens of thousands of URLs; and robots.txt, where you decide which crawlers may pass and which may not.

An XML sitemap is a file listing the URLs on your site that you want search engines to know about, with their last modified date. It is a map you hand Google so it does not depend solely on discovering links.

How to create one: in WordPress, Yoast SEO, Rank Math and All in One SEO generate it automatically (usually at /sitemap_index.xml); Shopify and Wix create it on their own too. On custom sites it is generated at build time, as on this very site. Then you submit it in Search Console.

Details almost nobody applies:

• Include only URLs you want indexed, returning 200 and canonical.
• One file holds up to 50,000 URLs; beyond that, split it into several with an index.
• Google ignores priority and change frequency; it does use the last modified date, if it is real.

robots.txt is a text file at the root of your domain (yoursite.com/robots.txt) that tells crawlers which parts of the site they may visit and which they may not. It usually also points to your sitemap.

The most dangerous confusion: robots.txt does not stop a page from being indexed. If you block a URL but other sites link to it, Google can still show it in results, just without reading its content. To remove a page from Google you use the «noindex» tag, and for that to work the bot must be able to crawl and read it.

Sensible uses: blocking internal search, carts, infinite filters and private areas. And these days, deciding whether to let AI crawlers in. In WordPress, Yoast lets you edit robots.txt from the dashboard; check it after every migration.

The canonical tag (rel="canonical") tells Google which version of a page is the main one when several URLs have the same or nearly the same content. For example, a product available at /sneakers?color=red, /sneakers?color=blue and /sneakers.

Without a canonical, Google picks on its own which one to show and splits signals among copies. With a canonical, you concentrate authority on the URL you want.

Three things worth knowing:

• It is a strong hint, not an order: Google may ignore it if other signals contradict it.
• Every indexable page should have a canonical pointing to itself.
• It does not fix different pages competing with each other: for that, merge and redirect.

This page, for instance, declares its canonical and its other-language versions with hreflang.

A 301 redirect tells browsers and search engines that a page has moved permanently to another URL. Google transfers the old page's signals to the new one, and anyone with the old link lands in the right place.

You use it when you change a URL, merge pages, migrate domains or move from http to https. A 302 is temporary (for example, a promotion) and should not be used for permanent moves.

Mistakes that cost rankings:

• Migrating a site without a redirect map: the number one cause of traffic drops.
• Redirecting everything to the homepage instead of the equivalent page.
• Chains: A → B → C → D. Every hop adds slowness and risk.
• Removing redirects too soon: Google recommends keeping them at least a year, and in practice, forever.

Web performance optimization (WPO) is improving how fast and smoothly a site loads. It matters moderately for SEO and enormously for sales: every extra second of waiting makes more people leave.

Google measures experience with Core Web Vitals. The «good» thresholds are:

• LCP (main element load): 2.5 seconds or less.
• INP (interaction responsiveness): 200 milliseconds or less.
• CLS (visual stability, nothing jumping): 0.1 or less.

The usual culprits: heavy images, too many third-party scripts (chats, pixels, maps), unoptimized fonts and slow hosting. AMP pages have not been required for Top Stories since 2021; a regular fast site qualifies. Measure for free with PageSpeed Insights.

It is making sure your site works and ranks well on phones, where most searches happen. Google uses mobile-first indexing: it mainly crawls and indexes the mobile version of your site. If something is missing from the mobile version, for Google it practically does not exist.

Mobile SEO basics:

• Responsive design: the same content and links on phone and desktop.
• Text readable without zooming and buttons you can tap with a finger.
• No pop-ups covering the content on arrival.
• Speed designed for mobile networks, not office wifi.

A free review trick: browse your own site on your phone, on mobile data, looking for something a customer would look for. If it frustrates you, who know the site, imagine a stranger.

Yes, a little for rankings and a lot for trust. Google confirmed in 2014 that HTTPS is a lightweight ranking signal. What weighs more: browsers flag sites without a certificate as «Not secure», which scares off visits and sales.

Today an SSL/TLS certificate is free (Let's Encrypt, or the one bundled with almost any hosting) and there is no reason not to have one.

When moving from http to https, watch what actually can hurt your SEO:

• 301 redirects from every http URL to its https version.
• Internal links, canonicals and sitemap updated to https.
• No «mixed content» (images or scripts loaded over http).
• The right property in Search Console.

The SEO of SSL is not in having it, but in migrating without breaking anything.

Structured data is code (usually JSON-LD, using the schema.org vocabulary) that describes your content explicitly for machines: this is a product, it costs this much, it has these reviews; this is an event, on this date; this is a recipe.

What it is for:

• It can produce rich results (rich snippets): stars, prices, availability, event dates.
• It helps Google and AI systems understand entities and relationships: who you are, what you sell, where you are.

Worth knowing: having schema does not guarantee a rich result, and Google has restricted several types (since 2023, FAQ rich results are shown almost only for government and health sites). This page still uses FAQPage and a glossary (DefinedTermSet), because describing content well helps any machine that reads it. Validate yours with the Rich Results Test.

Google does execute JavaScript: it renders pages with an up-to-date version of Chrome. But it does so in a second stage, which can be delayed, and if something fails in the script, any content depending on it simply does not exist for the search engine.

JavaScript SEO is making sure important content and links arrive in the HTML or render reliably:

• Links are a tags with an href, not buttons with click events.
• Main text does not depend on an interaction (click, scroll) to appear.
• Titles and metadata are delivered from the server.
• Content is not stuck behind a login or an API error.

There is an extra reason in 2026: many AI crawlers do not execute JavaScript. If your content only exists after the script loads, to them your site is empty.

No framework is bad for SEO; what can be bad is how it renders. The problem shows up in SPAs (single page applications) rendered only in the browser: the initial HTML arrives almost empty and content is assembled with JavaScript.

The fix is server-side rendering (SSR) or static generation (SSG):

• React: better with Next.js, Remix or similar, which render on the server.
• Angular: with its server rendering (formerly Angular Universal).
• Vue: with Nuxt.
• Next.js: ships SSR and SSG; packages like next-seo make metadata easier.
• Laravel: renders on the server by nature; there are packages for metadata and sitemaps.
• Hugo, Astro, Eleventy: generate static HTML, ideal for SEO.

This site is built with Astro, as static HTML: every question you read is already in the code, with no script to wait for.

Python automates what would take forever in a spreadsheet. Typical uses of Python in SEO:

• Pulling Search Console data through the API and crossing it with sales.
• Clustering thousands of keywords by similarity.
• Crawling a site to check titles, status codes or links.
• Detecting cannibalization or duplicate content at scale.
• Building reports that update themselves.

Common libraries: pandas for data, requests for downloading pages, BeautifulSoup for parsing HTML, and advertools, built specifically for SEO and marketing.

You do not need to be a programmer to start: AI assistants write decent scripts if you explain the task well. But check what the code does before running it against your site. A badly written loop can send thousands of requests to your server in a minute.

International SEO is ranking a site in several countries or languages. The key technical tool is hreflang, a tag that tells Google which version to show depending on the searcher's language and country: Spanish for Chile, English for the United States, and a default version (x-default).

What works:

• One URL per language or country (folders like /en/ or domains like .cl, .mx).
• Reciprocal hreflang: each version links to all others, including itself.
• SEO translation, not literal translation: in the US people search «cell phone», in the UK «mobile»; keywords change by country.
• No automatic redirects by IP: let the person (and Googlebot) choose.

This encyclopedia has a Spanish version, with hreflang on both pages. And it is not a word-for-word translation: each version is adapted to how people search in that language.

The domain name matters less than people think. Having the keyword in the domain («cheapsneakers.com») stopped giving an advantage over a decade ago; today a memorable brand name usually performs better, because people search for it and type it.

What does matter:

• The country extension (.cl, .mx, .co.uk) is a signal for ranking in that country.
• The domain's history: a bought domain with a spammy past may carry penalties.
• Subdomain or folder: blog.yoursite.com or yoursite.com/blog. Google says both work, but in practice folders tend to concentrate the main site's authority better.

And one tip that saves headaches: if you are changing domains, plan the migration with one-by-one 301 redirects. Changing your name is easy; getting Google to keep recognizing you is the hard part.

Yes, through speed and availability. Slow hosting worsens server response time and Core Web Vitals; hosting that goes down often makes Google hit errors and crawl less.

Server location matters little if you use a CDN (content delivery network), which serves your site from the point nearest each visitor. Providers like Hostinger or GoDaddy also offer «SEO tools» in their dashboards: they are basic assistants, useful for the minimum, not an SEO service.

A warning: so-called «SEO hosting» that sells many different IPs to host multiple sites exists to build networks of blogs that link to each other and fool the search engine. It is a black-hat practice. If a provider pitches it as a feature, you know who it is designed for.

Off-page SEO (or off-site SEO) is everything that happens outside your site and tells the search engine you are relevant and trustworthy: links from other sites, brand mentions in media, reviews, profiles in industry directories and social presence.

Off-page SEO examples that work:

• An industry outlet cites your study and links to your site.
• Customers leave genuine reviews on your Google profile.
• You are invited to a podcast or webinar and the episode page links to you.
• A trade association lists you as a member.

Off-page strategies to avoid: buying links in bulk, commenting on blogs with your URL, mass link swaps. They all worked in 2010. Today, at best they add nothing, and at worst they flag you as spam.

Link building is the work of getting links from other sites to yours (backlinks). Links remain one of Google's strongest signals: each one works like a vote of confidence, and weighs more if it comes from a respected site in your field.

Legitimate ways to earn backlinks:

• Create something citable: original data, studies, free tools, definitive guides.
• Digital PR: give journalists stories and data they can use.
• Find unlinked mentions of your brand and politely ask for the link.
• Real partnerships: suppliers, clients, trade groups, universities.

Tools like Ahrefs, Semrush or Majestic show who links to you and who links to your competitors. What they do not tell you: ten good links are worth more than a thousand from unknown directories, and good content is still the cheapest magnet.

Buying links to manipulate rankings violates Google's spam policies. It can work for a while, and that is precisely the problem: you invested, you climbed, and one day an update wipes it out, sometimes with a manual action included.

A PBN (private blog network) is a network of sites, often built on expired domains with history, created only to link to one site and push it up. It is the industrial version of buying links, and Google actively goes after it, including expired domain abuse.

What is legitimate: paying for advertising or a sponsored article, as long as the link is marked rel="sponsored" or nofollow. If a «backlink service» guarantees hundreds of links for a fixed price, ask yourself where so many sites willing to link to you come from. The answer is never good.

PageRank is the algorithm Google was born with in 1998: it measured a page's importance by how many pages linked to it and how important those were. It still exists internally, heavily evolved, but Google stopped showing it publicly in 2016.

Domain authority is not a Google metric: it is a useful invention by SEO tools to estimate a site's strength from its links. Moz calls it Domain Authority (DA), Ahrefs calls it Domain Rating (DR) and Semrush, Authority Score. Each is calculated differently and Google uses none of them.

They are useful for comparing your site with competitors and prioritizing which links are worth pursuing. They are useless as a goal in themselves: raising your «DA» with junk links is fixing the thermometer without lowering the fever.

E-E-A-T stands for Experience, Expertise, Authoritativeness and Trustworthiness. It is the framework Google's human quality raters use to judge a page, described in their rater guidelines. The first E, experience, was added in December 2022.

It is not a score or a single factor you «optimize». It describes what Google's systems try to reward: content made by someone who knows or has lived what they describe, published by a trustworthy source.

How you show it in practice: an identified author with a real track record, first-hand experience (your own photos, cases, data), cited sources, clear contact information, reviews and reputation off-site. Trust is the core: on health, money or legal topics, much more is demanded.

Black hat SEO is the set of techniques that try to climb Google by fooling the algorithm instead of earning the spot. The name comes from westerns: the villain wore the black hat.

Classic black hat examples:

• Cloaking: showing Google one page and people another.
• Hidden text: keywords in white on white.
• Keyword stuffing: repeating keywords to absurdity.
• Buying links and PBNs.
• Mass-generated content with no value, via AI or templates.
• Parasite SEO: riding on another site's reputation.

There are entire forums devoted to it, and the question always hanging in the air is «does it work?». Sometimes, for a while. The real cost is building on something Google can erase in any update, with no warning and no useful appeal. For a business that wants to exist in five years, it is a bad investment with good marketing.

White hat SEO follows search engine guidelines: it improves the site and content for people and lets rankings follow. Black hat looks for shortcuts that break those guidelines. In between sits gray hat: techniques not explicitly banned but that smell off.

A practical way to tell them apart: ask whether you would do it even if Google did not exist. Improving speed, writing better, getting cited by a journalist: yes. Buying a hundred links or hiding text: no.

White hat vs. black hat is also a difference in time horizon. Black hat can deliver faster, more volatile results; white hat is slower and cumulative. For a real company, with a brand and customers, the risk of black hat is not just losing rankings: it is your name becoming associated with spam.

Parasite SEO is publishing content on someone else's high-authority site to borrow its reputation and rank fast: for example, casino reviews or discount coupons in a section of a well-known newspaper, or third-party pages inside a university site.

Google calls it «site reputation abuse» and added it to its spam policies in March 2024. The penalty falls on the host sections or site, not only on whoever published.

There is a legitimate, non-parasitic version: writing an opinion column in a newspaper, posting under your name on LinkedIn or Medium, or appearing on an industry portal. The difference is whether the content makes sense on that site and is overseen by it, or whether it is rented space to sneak into Google.

Negative SEO is trying to harm a competitor's rankings: sending them thousands of junk links, copying their content, leaving fake reviews or hacking their site. It exists, but it is less powerful than people fear.

Google says its systems are built to ignore most spam links you do not control. In practice, the attacks that hurt most are not link-based: they are hacks (pages injected into your site) and fake reviews on your Google profile.

What to do:

• Keep your CMS and plugins updated, with strong passwords.
• Check Search Console: it warns you about security issues and manual actions.
• Report fake reviews from your business profile.
• Use the disavow tool only if there is a manual action or an obvious pattern; using it out of paranoia can do more harm than good.

About «SEO blacklists»: if your domain appears on spam lists, it is usually due to malware or bulk email. Clean it and request a review.

SEO poisoning is a cybercriminal technique: attackers rank fake pages on Google for popular searches, and when someone clicks, they download malware or have their data stolen. Classics: «download [program] free», «[software] crack», «[government form] pdf».

It relies on hacked sites with good reputations, fake ads and mass-generated content. That is why these pages show up on top, even if only for hours.

How to protect yourself as a user: download software only from the official site, distrust results with odd domains and never install «free premium versions». As a business: keep your site updated so it cannot be used as a host, and watch Search Console for pages you did not create. If your brand is popular, search «[your brand] download» and «[your brand] login» now and then to see what comes up.

Google changes its algorithm thousands of times a year; some updates are big and get names. The historic ones:

• Panda (2011): punished thin content and article farms.
• Penguin (2012): targeted manipulated links and forced anchor text.
• Hummingbird (2013): started understanding the meaning of searches, not just words.
• Mobilegeddon (2015) and mobile-first indexing: the phone took charge.
• BERT (2019): natural language understanding.
• Helpful content (2022): against content made for search engines; in 2024 it was folded into the core systems.

Today Google announces several «core updates» a year plus spam updates. If your traffic drops right during one, do not hunt for the trick you were punished for: compare your pages with those that rose and honestly ask which is more useful.

When someone searches your brand, Google's first page is your reputation. If it shows your site, your profile with good reviews, your social accounts and positive press, you are fine. If it shows a viral complaint or an old news story, that is what defines you.

Online reputation management with SEO (ORM) works on two fronts:

• Build: complete profiles on the platforms Google shows, solid owned content, media appearances (digital PR), genuine customer reviews.
• Respond: answer negative reviews respectfully with a visible fix, correct false information, ask for outdated articles to be updated.

What does not work and costs a lot: trying to «bury» legitimate results with filler sites or fake reviews. In the era of AI chats, those models read everything that exists about you. The best defense is having far more of the good stuff.

Personal SEO is controlling what appears when someone searches your name: a recruiter, a client, someone about to meet you. It is brand SEO at person size.

What to do:

• Your own site with your name in the domain or title, even a one-pager: who you are, what you do, how to reach you.
• Complete, consistent profiles on LinkedIn and the networks you use, with the same photo and description.
• Publish under your name: columns, talks, podcasts, interviews.
• Person structured data on your site, linking your profiles (sameAs).

If your name is common, add a surname, your city or your trade everywhere («Ana Pérez, architect in Valdivia»). And search yourself in incognito mode once a month. What you see there is what they see.

Local SEO is ranking a business for searches with geographic intent: «locksmith in Ñuñoa», «pizza near me», «dentist open now». Those searches show a map with three highlighted businesses (the local pack) before the regular results.

Benefits of local SEO:

• It reaches people ready to buy and close to you.
• You compete in your neighborhood, not against the whole internet.
• Much of it is free, on your Google Business Profile.
• The reviews you earn double as social proof.

Google ranks local results by three factors: relevance (how well your profile matches the search), distance and prominence (how well known and well rated you are). You do not control distance; the other two you do. If you have a physical location or serve an area, it is probably the highest-return SEO you can do.

A local SEO guide in six steps:

• 1. Claim and complete your Google Business Profile: precise primary category, hours, service area, real photos, products or services with prices.
• 2. Ask every happy customer for a review, with a direct link, and answer them all.
• 3. Keep your NAP identical (name, address, phone) on your site, social profiles and directories.
• 4. Create one page per location or area you serve, with its own content, not copied with the name swapped.
• 5. Earn local mentions: neighborhood media, chambers of commerce, sponsorships.
• 6. Post on your profile news and offers, as if it were a social network.

With several branches, this becomes a management job: holiday hours, photos, reviews for a hundred locations. That is why we built Cenit, which manages the Google profiles of one or a hundred branches from a single place.

Google Business Profile is the free listing that shows your business on Google Maps and Search: address, hours, phone, photos, reviews and buttons to call or get directions. Until 2021 it was called Google My Business, and many people still search for it that way.

How to optimize it to show up on Google Maps:

• Exact primary category and matching secondary categories.
• Your real business name, without adding keywords (Google penalizes it).
• Your own, up-to-date photos: façade, interior, products, team.
• Hours always current, including holidays.
• Reviews: ask for them, answer them, never buy them.
• Products, services and posts with concrete information.

The profile is often the first thing a local customer sees, before your website. Treating it as paperwork is leaving the shop window with the lights off.

NAP stands for Name, Address, Phone. In local SEO, the rule is that those three details must be identical everywhere: your website, your Google profile, your social accounts, directories and industry platforms.

Why it matters: search engines cross-reference those mentions to confirm your business exists and is where you say. If one place says «1234 Providencia Ave, Office 5» and another «Providencia 1234 unit 5», or lists two different phones, the signal weakens and customers get confused.

Practical task: build a spreadsheet of every place your business appears and unify them. If you moved, this is the most important local SEO task, and the one almost everyone leaves half done.

WordPress is a good SEO foundation, but it does not come optimized on its own. Steps to set up SEO in WordPress:

• Settings → Permalinks: choose «Post name» for clean URLs.
• Settings → Reading: make sure the option discouraging search engines from indexing the site is NOT checked (a classic after development).
• Install an SEO plugin (Yoast, Rank Math or similar) for titles, descriptions, sitemap and structured data.
• Choose a lightweight theme. Heavy themes and builders like Avada or a poorly configured Elementor can sink your speed.
• Optimize images on upload and use caching.
• Keep everything updated and delete plugins you do not use.

How do you improve WordPress SEO once it is running? Almost always: lighten the theme, fix duplicate titles and tidy categories and tags, which tend to create hundreds of near-empty pages. An «SEO theme» alone ranks nothing.

All three handle the essentials well: editable titles and descriptions, XML sitemap, canonicals, basic structured data and indexing control. Which one you choose matters less than configuring it properly.

Differences that do count:

• Yoast SEO: the most used and best documented. Clear interface, readability analysis. Some useful features are Premium-only.
• Rank Math: the free version includes more (several keywords, more schema types). More options, more ways to misconfigure.
• All in One SEO (AIOSEO): one of the oldest, since 2007; complete and well supported.
• The SEO Framework: lightweight and free of nags, for those who prefer the minimum.

One important rule: use only one. Two active SEO plugins duplicate tags and sitemaps. And if you migrate from one to another (say, Yoast to Rank Math), use the import tool so you do not lose titles and descriptions.

Yoast SEO is WordPress's most popular SEO plugin, active on millions of sites. It was created by Dutch developer Joost de Valk. It lets you edit each page's SEO title and meta description, generates the sitemap, adds structured data, controls what gets indexed and checks your text's readability.

How to use Yoast SEO well, in its initial setup:

• Complete the wizard: site type, organization or person, logo, social profiles.
• In «Search appearance», review which content types get indexed (tag and author archives often are not needed).
• On each post, write the SEO title and meta description in the Yoast box, checking the preview.
• Treat the traffic light as a guide, not a boss.

It works with Elementor and on multisite installs. Fun fact: this site does not use WordPress, but its structured data graph comes from a library by Joost de Valk for Astro.

The focus keyphrase is the main search you want a page to rank for. You tell Yoast in the editor box, and the plugin checks whether it appears in the title, introduction, subheadings, URL and meta description.

How to use it well:

• One phrase per page, the way people type it («adult swimming lessons»), not a single word.
• Do not use the same phrase on two pages: Yoast warns you, because they would compete.
• Premium lets you add synonyms and related keyphrases; the free version allows just one.

What Yoast does not tell you: the keyphrase is a note for you, not something Google reads. Filling in the field ranks nothing. It is a checklist to make sure the text talks about what you promise. If the light turns green and the text comes out forced, the light won and you lost.

Yoast SEO Premium costs roughly a hundred dollars a year per site (check the current price on their page; it changes with promotions and bundles). It adds, among other things: several keyphrases per page, synonyms, a redirect manager, internal linking suggestions, orphaned content alerts, AI features for generating titles, and support.

Is it worth it? For a small site that publishes little, the free version is enough. Premium pays off if you publish a lot and use the redirect manager and linking suggestions, which save real hours.

What is never worth it: «free Premium», nulled versions or downloads from pirate sites. They often carry malicious code that injects spam links or backdoors into your site. It is literally paying for the plugin with your business's security. More in the pirated tools tile.

WooCommerce is WordPress's store, so it inherits WordPress SEO and adds every e-commerce challenge:

• Unique product pages: do not copy the manufacturer's description used by a hundred stores. Add measurements, uses, your own photos and FAQs.
• Categories with their own copy: a useful introduction turns each category into a rankable page.
• Product structured data (price, stock, reviews): Yoast has a dedicated WooCommerce add-on and Rank Math includes it.
• Control filters and variations so they do not generate thousands of duplicate URLs.
• Out-of-stock products: do not delete them if they get traffic; show alternatives or redirect to the closest match.

And speed, which on WooCommerce tends to suffer from accumulated plugins. A slow store loses sales before it loses rankings.

Shopify handles the technical base well (HTTPS, sitemap, decent speed, automatic canonicals), so Shopify SEO is mostly about content and a few platform quirks:

• Edit the SEO title and description of every product, collection and page under «Search engine listing preview».
• Write your own descriptions and an introductory text for each collection.
• Mind the fixed URLs: Shopify forces /products/ and /collections/, and a product can have several paths; the canonical solves it, but always link to the product's main URL.
• Watch your apps: each app adds scripts; ten apps can wreck your speed.
• Editable robots.txt from the theme, if you need to block internal search or filters.

Shopify SEO apps help with bulk metadata and structured data, but none replaces writing good product pages. To improve Shopify SEO, start with your ten best-selling products.

Today, reasonably so. Wix carried a bad reputation for years because its sites relied heavily on JavaScript and were slow, but the platform has improved a lot: it lets you edit titles, descriptions, URLs, redirects, robots.txt, structured data and canonicals, and generates the sitemap automatically.

Wix SEO Wiz is its setup assistant: it asks about your business and builds a task list. Useful for not forgetting the basics, not for building a strategy.

Limits to consider: less fine-grained technical control than WordPress or a custom site, speed that depends on how many apps and animations you add, and migrating off Wix later is laborious. For a small business that needs a nice, functional site now, Wix works. For a big e-commerce store or a site with thousands of pages, another platform is a better fit.

All of them can rank; what changes is how much control they give you and how much work they take:

• Webflow: excellent on-page SEO control and clean code. Great if someone with design judgment runs it.
• Squarespace: comfortable and beautiful, with the SEO essentials editable. Less fine-grained technical control.
• Drupal: very powerful and secure, with modules like Metatag and Pathauto; needs a technical team.
• Joomla: capable, with native friendly URLs and metadata, but a smaller community than before.
• Blogger (Blogspot): free and crawled by Google without issues, but with little control and a domain that is not yours unless you connect your own.
• Google Sites: fine for internal pages or simple projects; its SEO control is very limited.
• Static generators (Hugo, Astro, Eleventy): fast, clean HTML, ideal for SEO if someone technical is around.

The best CMS for SEO is the one your team can keep updated without fear.

They are e-commerce platforms with different strengths:

• Magento (Adobe Commerce): very powerful for large catalogs, with full technical control. Its Achilles' heel is filtered navigation, which generates thousands of duplicate URLs if uncontrolled, and speed if the server does not keep up.
• PrestaShop: popular with mid-sized stores; enable friendly URLs in the SEO & URLs settings and rely on modules for metadata, sitemap and structured data.
• Jumpseller: widely used by small businesses in Chile; it lets you edit titles, descriptions and URLs for products and categories and generates the sitemap. The SEO work happens on product pages and categories.

On all three, online store SEO is the same game: unique product pages, categories with useful content, controlled filters and zero duplicate products. The platform sets the floor; the product pages set the ceiling.

E-commerce SEO has three fronts:

• Categories: usually the pages that sell most through SEO, because they answer searches like «women's hiking boots». Give them a useful intro, well-built filters and links to subcategories.
• Product pages: your own description, complete specs, real photos, reviews, FAQs and structured data with price and stock.
• Technical: controlling filters and parameters, handling out-of-stock products, clear pagination and mobile speed.

An e-commerce SEO strategy almost nobody follows: prioritize by margin, not volume. Ranking the most searched product you barely profit on is misspent work. And another: Google Shopping has free listings (organic listings) if you upload your catalog to Merchant Center. It is SEO for products and costs very little to switch on.

Each marketplace is a search engine with its own algorithm, and they all share one logic: they show first what they think will sell.

• Mercado Libre: the title matters (product, brand, model and key feature, no filler words), along with a complete spec sheet, your seller reputation, sales history, price and shipping type.
• Amazon: its algorithm prioritizes title and bullet point relevance, conversion, sales, price and availability. Backend hidden keywords count too.
• Etsy: uses the title, attributes and up to 13 tags per listing; photo quality and reviews weigh heavily.
• Airbnb: reviews, response rate, price and photos.

The difference from Google: on a marketplace, selling makes you sell more. That is why the first push (good price, good photos, fast replies) matters as much as the keyword.

In Chile and most of the world, Google handles the vast majority of searches, so «doing SEO» in practice means doing SEO for Google. But it is not the only one:

• Bing (Microsoft) has a smaller share, but it also powers Yahoo's results and parts of other search engines and assistants. It has its own free Bing Webmaster Tools and supports IndexNow to report changes instantly.
• Baidu dominates China; ranking there requires a site in Chinese and, to host it in mainland China, a local license (ICP).
• Yandex leads in Russia and Naver in South Korea.

The good news: what works on Google (a crawlable site, clear content, good reputation) usually works on the others. Museum fact: the «Alexa rank» many people still search for ceased to exist in 2022, when Amazon shut the service down.

YouTube is a search engine in its own right, and its videos also appear on Google. YouTube SEO combines what the algorithm can read with what people do:

• Title with the main search, clear and appealing; the important part first.
• Description with context in the first lines, timestamped chapters and links.
• Reviewed captions (automatic ones sometimes mistranscribe exactly your keywords).
• Thumbnail that invites the click without misleading.
• Retention: how much of the video people watch. It is the heaviest signal, and no keyword replaces it.

Tags matter little today; they mostly help with misspellings of your name. YouTube keyword tools help pick topics, but the golden rule is different: the video that quickly delivers what the title promises is the one the algorithm pushes.

It is getting your videos to appear in Google's results (in the video carousel or alongside pages) and in platform search engines like YouTube or TikTok.

For videos hosted on your own site:

• One page per video, with title, description and a text transcript.
• VideoObject structured data, with thumbnail and duration.
• A thumbnail Google can access, and the video not hidden behind a button.
• A video sitemap if you have many.

For video marketing, the usual strategy is to publish on YouTube (for reach) and embed the video on a page of your site that accompanies it with useful text. That way you win on both fronts: the video captures on YouTube and the page on Google. Short vertical videos also show up more and more in Google's results.

Yes, in two senses. First, Instagram's internal search: it finds accounts and posts by name, username, bio, caption text and alt text. Hashtags have lost weight; words used naturally in the text have gained it.

Second, Google: since mid-2025, Instagram lets Google index public posts from professional accounts, so a well-described post can appear in web searches.

How to do Instagram SEO:

• Put your trade and city in the name field («Lucía Bakery · Cakes in Ñuñoa»), not just your brand.
• Write captions describing what is shown and what you offer, in a customer's words.
• Fill in image alt text.
• Keep the account professional and public if you want to appear on Google.

It has two meanings. First: optimizing your profiles and posts so people find you inside each network, because TikTok, Instagram, LinkedIn or Pinterest also work as search engines. Back in 2022 a Google vice president acknowledged that nearly 40% of young people looked for a lunch spot on TikTok or Instagram before Google Maps.

Second: how social media helps your site's SEO. Links from social networks do not lift your rankings directly, but social media generates searches for your brand, spreads your content and gets others to link to it.

What is worth looking after: your site's Open Graph tags, which define how your page looks when shared (image, title, description). They do not affect ranking, but an ugly card on WhatsApp or LinkedIn cuts clicks. A good community manager today also thinks in keywords.

Facebook SEO aims at two things: getting your page to show in Facebook's internal search and on Google when people search your brand (public Facebook pages are indexed).

What helps:

• A clear page name and, if possible, a custom username (facebook.com/yourbrand).
• The right category, a description with your trade and city, complete address and hours.
• Posts with descriptive text, not just images.
• Active reviews and recommendations.

Facebook links do not pass authority to your site (they are nofollow), so do not use it as a link-building strategy. Use it for what it is: a community channel and one more result taking up space on the first page when someone searches your name.

On LinkedIn, SEO means showing up when recruiters, clients or partners search within the network, and having your profile appear on Google when they search your name.

For personal profiles:

• Headline stating what you do and for whom, in words someone would search («SME accountant · Tax and payroll»), not just your job title.
• About and experience sections with your specialties written naturally.
• Custom URL with your name.
• Well-chosen skills and recommendations.

For company pages: complete description, industry, location and consistent posting. Articles you publish on LinkedIn can appear on Google, but the authority stays with LinkedIn, not your site. If the content is strategic, publish it first on your website and then share it on LinkedIn with a summary.

Pinterest is a visual search engine with real SEO: pins live for months or years and are found by title, description, image text and the board they sit on. It works especially well for home décor, recipes, fashion, weddings, crafts and travel. A well-described pin linking to your site can bring visits for a long time.

X (formerly Twitter) is another story: its search is mostly real-time, and a post's life is measured in hours. Google indexes some posts and shows profiles when you search a name. Its SEO value lies in distribution (someone sees your content and links to it), not in ranking posts.

If you sell something visual, Pinterest deserves more attention than it usually gets. If not, prioritize other channels.

Medium is a domain with a lot of authority, so an article there can rank fast. The catch: the authority stays with Medium, not your site. If you use it, publish on your website first and then bring the article into Medium with its import tool, which sets the canonical to your original.

Reddit gained enormous visibility on Google from 2024 (including a data licensing deal between the two companies): many searches now show Reddit threads on top. For brands it is useful for understanding what people ask and joining in with helpful answers, without selling. Users detect and punish brand spam instantly.

Bottom line: good places to listen and talk, bad places to build your house. Your website is the only ground where nobody can change the rules on you.

Voice search exists (Google Assistant, Siri, Alexa, the microphone in the search bar), but its revolution was exaggerated. The famous prediction that «by 2020 half of all searches will be voice» never came true, and its origin is dubious: it circulated for years as a statistic without a source to back it up.

What is true: people speak in longer, more natural sentences than they type, and assistants usually read a single answer, often pulled from a featured snippet.

How to prepare without obsessing: answer complete questions directly on your pages, keep your Google profile sharp for local searches («pharmacy open now near me») and use structured data. It is exactly what helps you appear in AI summaries today. Voice and AI reward the same thing: clear answers.

Honestly: there is no direct control, and anyone selling you otherwise deserves suspicion. The AEO and GEO labels describe a real channel, but most «proven tactics» expire before the report selling them, because the models change every few months.

What does raise your odds of being cited:

• Clear, extractable content: short, direct answers with data and sources.
• Consistent presence of your brand tied to your topic on sites the models read: media, directories, forums, reviews.
• A site crawlers can read without JavaScript, with structured data.
• A brand people ask about by name.

In other words, exactly what makes you citable by a journalist. In our plans this is called AI Ready, and it includes monitoring how the chats mention you. We also keep an llms.txt on this site, though there is no solid evidence yet that the big models use it: it costs nothing to have.

SEO tools split by task, and none does everything well:

• Google data (free): Search Console and Analytics. The only ones with your real data.
• All-in-one suites (paid): Semrush, Ahrefs, Moz, SE Ranking. Keywords, competitors, links, rank tracking.
• Crawlers: Screaming Frog, Sitebulb. Technical site audits.
• Speed: PageSpeed Insights, Lighthouse.
• Content: Surfer, Clearscope, the suites' writing assistants.
• Local: profile and review management tools.

The best SEO tools are the ones someone on your team uses every week. Paying for a hundred-dollar-a-month suite nobody opens is the industry's most common expense.

We built our own for the repeatable work: Pidge (crawling and audits), Seonia (optimization at scale) and Cenit (Google profiles). And underneath, like everyone, we pull data from external sources that can be audited.

With these free tools you can do most of a small business's SEO:

• Google Search Console: searches, clicks, positions, indexing errors. The most important one.
• Google Analytics 4: what people arriving from organic search do.
• PageSpeed Insights: speed and Core Web Vitals.
• Rich Results Test: validates your structured data.
• Screaming Frog: free up to 500 URLs.
• Google Ads Keyword Planner: approximate volumes.
• Bing Webmaster Tools: extra data and good SEO reports.
• Limited free versions of Semrush, Ahrefs Webmaster Tools, Ubersuggest and similar.

About «free online SEO tools» sites (analyzers, plagiarism checkers, generators): they work for quick checks, but be careful where you paste your texts and with «free download» programs from unknown sites. Truly free almost always comes from Google or a known company with a paid plan.

Google offers the most valuable tools for free, because they are the only ones with real data from its search engine:

• Search Console: your site's dashboard in Google. Which searches show you, how many clicks you get, your average position, which pages are indexed and what errors exist. URL inspection tells you how Google sees a specific page.
• Google Analytics 4: what organic visitors do and what converts.
• PageSpeed Insights and Lighthouse: speed and experience.
• Rich Results Test: structured data.
• Google Business Profile: your local listing.
• Keyword Planner (inside Google Ads).
• Looker Studio: free dashboards that combine all of the above.

Google Tag Manager is not an SEO tool itself, but it organizes your measurement tags. If you only use one tool on this list, make it Search Console, and open it every week.

Search Console tells you what happens before the click (searches, impressions, positions). Google Analytics tells you what happens after: how many people arrive from organic search, which pages they visit and, most importantly, whether they buy, get in touch or leave.

To use GA4 for SEO:

• Look at the «Organic Search» channel in the acquisition reports.
• Set up the conversions that matter (form, purchase, WhatsApp click) to know which organic traffic is valuable.
• Link Search Console to GA4 to see queries and landing pages together.
• Compare organic landing pages: which bring visits that convert and which only curious readers.

A common trap: many people who find you through an AI chat, or who saw your brand on Google without clicking, appear in no report. Web analytics is indispensable, but it does not see everything. Asking every customer how they found you is still the cheapest measurement there is.

They are the three best-known SEO suites and do similar things: keyword research, competitor analysis, site audits, rank tracking and link analysis.

• Semrush: the broadest, with strong keyword and competitive research, ad data and a writing assistant.
• Ahrefs: famous for its backlink index and a very clear interface. It offers free Ahrefs Webmaster Tools for your own site.
• Moz: the pioneer (it began as SEOmoz), creator of the Domain Authority metric; simpler and more educational.
• Majestic: a links-only specialist, with its Trust Flow and Citation Flow metrics.

None has Google's real data: they estimate volumes and traffic with their own methods, and the figures differ between them. Use them to compare and discover, not as absolute truth. They start at around a hundred dollars a month; try one on a trial with your real work before committing.

Screaming Frog SEO Spider is a desktop program that crawls your site as a search engine would and hands you a spreadsheet with everything: status codes, titles, meta descriptions, headings, canonicals, redirects, images without alt text, broken links and much more.

It is the technical audit tool most used by professionals. The free version crawls up to 500 URLs, enough for small sites. The paid license (annual, around 200 pounds) removes the limit and adds features like JavaScript crawling, Search Console integration and crawl comparison.

Advice for beginners: do not get overwhelmed by the hundreds of columns. Start with three tabs: response codes (404 errors and redirects), page titles (empty or duplicate) and directives (what has noindex). And about the pirated «full» version: read the pirated tools tile before looking for it.

Surfer SEO is a paid content optimization tool. It analyzes the pages currently ranking for a search and suggests which terms, topics, length and structure the competing content has, with a score that rises as you write in its editor.

It helps you avoid missing important subtopics and gives an objective reference when updating articles. Its blog also publishes useful studies and guides.

The warning Surfer does not print in large type: optimizing for its score is optimizing to resemble what already exists. If everyone uses the same tool, everyone writes the same thing, and Google does not need an eleventh page identical to the first ten. Use it as a checklist, and add what the tool cannot suggest: your experience, your data and your opinion.

SEO extensions for Chrome (and some for Firefox) show you data about any page as you browse, without opening another tool:

• SEOquake (by Semrush): page and SERP metrics.
• SEO Minion: checks titles, headings, broken links and hreflang.
• Detailed SEO Extension: quick summary of metadata, headings and structured data.
• Ahrefs, Moz and similar toolbars: authority and link metrics.
• Lighthouse: built into Chrome's developer tools.

Use them to take a quick look at competitors or check a page. Two precautions: install only extensions from known companies (an extension can read everything you browse) and do not trust a single number. And a no-extension trick: Ctrl+U (Cmd+Option+U on Mac) shows any page's source code, with its real title and meta description.

Three ways, from free to paid:

• Search Console (free): shows the average position of each page for each query. It averages every time you appeared, so it looks «smoothed», but the data is real.
• Searching yourself: of little use, because Google personalizes by location and history. If you do it, use incognito mode and keep your city in mind.
• Rank trackers (paid): tools like Semrush, Ahrefs, SE Ranking, AccuRanker or Nightwatch check your positions daily for a keyword list, by city and device.

Some context: these tools work by querying Google's results pages, and Google is making that extraction harder and more expensive. Rank tracking will likely get pricier. Meanwhile, remember that position is a means: what matters is whether those searches bring you customers.

There are hundreds. A quick guide to the most searched:

• SEO PowerSuite: a desktop bundle with Rank Tracker, WebSite Auditor, SEO SpyGlass (links) and LinkAssistant.
• Ryte, seoClarity, Conductor: platforms for large companies, with monitoring and workflows.
• SEOZoom: a popular suite in Italy.
• Visual SEO Studio: a desktop crawler, an alternative to Screaming Frog.
• Nightwatch: rank tracking.
• SEO Panel: an open-source panel for managing several sites.
• SEO Mofo: an old simulator of how your result looks on Google.
• GSA Search Engine Ranker: automates mass link creation. It is a black-hat tool; do not use it on a site you care about.

Other names that pop up in searches (SEO Lab, SEO Box, SEO Doctor, SEO Guru, SEO Warriors, Tiger SEO, Rabbit SEO and many more) are brands, agencies or products we have not evaluated, and we do not review what we have not tried. Always ask what data they use and where it comes from.

No, and the reason is not moral: it is security and money.

• Nulled or «free premium» plugins (Yoast, Rank Math, WordPress themes): they often carry malicious code that injects spam links, creates hidden admin users or redirects your visitors. You end up paying with your site.
• Cracked «full» versions of programs like Screaming Frog: the same risk, now on your computer, where your passwords live.
• Group buys (shared accounts for Semrush, Ahrefs and others): they violate terms of use, drop without warning and hand your projects and data to strangers.
• Searching «index of» + a book or program name to find downloads: a classic way to land on servers full of malware.

The honest alternative is better than it looks: almost all these tools have free versions or trials, and Google's tools are free and more useful than any crack.

An SEO analysis checks how your site stands with search engines: whether it gets indexed, answers searches well, is fast and has a reputation. You can run a basic one for free, in this order:

• Search Console → Pages: what is indexed, what is not, and why.
• Search Console → Performance: which queries give you impressions and clicks, and where you rank well but get few clicks.
• PageSpeed Insights: the speed of your main pages, on mobile.
• Free Screaming Frog: titles, meta descriptions, 404 errors and redirects.
• Search your brand and services on Google in incognito mode: what does a customer see?

To check the SEO of someone else's page, use an extension or the source code (Ctrl+U). Free online SEO analyzers produce an automatic report that is useful as a starting point. What none of them does is tell you what to fix first for your business: that takes judgment, and it is the difference between an analysis and a report.

An SEO checker (or SEO test) is a tool that automatically reviews a URL and gives you a list of problems and a score: title too long, missing meta description, images without alt, slow page, no HTTPS.

They are good for a quick check of a single page, and several are free online: those from Semrush, Ahrefs, SEOptimer or Chrome's own Lighthouse. To review a whole site you need a crawler, not a single-URL checker.

What to know before believing the score:

• Each tool weighs things differently: the same page can score 62 on one and 88 on another.
• They check what can be measured automatically, not whether your content beats the competition (which matters most).
• Some flag as errors things that are not.

Use them like a vital-signs check, not a diagnosis.

An SEO score is a number each tool invents to summarize how many basic checks a page passes. Google has no «SEO score» for your site, so no score is Google's.

Lighthouse's (in Chrome and PageSpeed Insights) checks elementary things: a title and meta description exist, the page can be indexed, links are crawlable, images have alt, hreflang is valid. Scoring 100 means you made no basic mistakes, not that you will rank.

Other scores (from Semrush, Ahrefs, SEOptimer and similar) mix technical checks with their own criteria. They are useful for tracking progress over time on your own site. Comparing your score with another site's, however, says little: competition is won on content and reputation, which no score measures well.

An SEO audit is a complete review of a site to find what keeps it from ranking and to order what to fix first. A good audit includes:

• Technical: crawling, indexing, status codes, redirects, canonicals, speed, mobile, structured data.
• On-page: titles, metadata, headings, duplicate or thin content, cannibalization.
• Content: which searches the site covers and which it does not, compared with competitors.
• Authority: link and mention profile, toxic links.
• Local, if relevant: Google profile, NAP, reviews.
• Measurement: Search Console and Analytics configured correctly.

What separates a useful audit from a 90-page PDF: priorities. A list of 400 errors with no order is useless; ten tasks ranked by impact are not. Free online audits offer a good first look. In our plans, the technical audit with Pidge is included from the Micro tier ($210,000 CLP + VAT per month), and every finding becomes a task that is later verified.

A step-by-step SEO audit, in the order we run it:

• 1. Context: business goals, pages that sell, history (migrations, drops).
• 2. Indexing: Search Console's pages report; how many URLs are indexed versus how many should be.
• 3. Full crawl: with a crawler; 4XX and 5XX errors, redirects, chains, canonicals, noindex, orphan pages.
• 4. On-page: empty, duplicate or overlong titles and metadata; H1s; thin content.
• 5. Performance: Core Web Vitals for the main templates (home, category, product, article).
• 6. Content and searches: which queries bring traffic, which are near the top 10, what your customers search that you do not answer.
• 7. Links and reputation: who links to you, what they say about you.
• 8. Priorities: an impact-versus-effort table, with owners.

The last step is the only one the client remembers, so that is where most of the effort goes.

Measure in three layers, from what Google does to what your business earns:

• Visibility: impressions, average position, indexed pages, queries you appear for. (Search Console.)
• Traffic: organic clicks, CTR per page, organic visits to sales pages. (Search Console and Analytics.)
• Business: conversions and sales from organic, cost per customer compared with other channels, searches for your brand.

One KPI we always recommend splitting: brand vs. non-brand traffic. With AI summaries, generic searches lose clicks and brand searches gain them; measure them together and you will reach the wrong conclusion.

And the most common measurement mistake: celebrating visits. A thousand visits to an article that sells nothing are worth less than fifty to your pricing page. A useful SEO dashboard fits on one screen and answers a single question: is this bringing in customers?

A good SEO report is read in five minutes and ends with decisions. Recommended structure, with an example of what it should say:

• Three-line summary: «Organic traffic to service pages grew 12%; we lost visibility on the blog to AI summaries; this week we fixed the old site's redirects».
• Key metrics against the previous month and the same month last year (for seasonality).
• What was done and its effect.
• Alerts: drops, new errors, Google changes.
• Next steps with owner and date.

What most reports have too much of: twenty uninterpreted charts, pasted tool screenshots and the word «synergy». If you ask an agency for a sample SEO report before hiring them, check whether it explains what happened or merely shows that things happened.

An SEO competitor analysis answers: who shows up when my customers search, and why them and not me?

Steps:

• Identify your search competitors, who are not always your business competitors: sometimes a media outlet, a directory or a marketplace beats you.
• See which searches they win and you do not (SEO suites call this a «keyword gap»).
• Compare their pages with yours for those searches: format, depth, data, speed, what they answer that you do not.
• Check who links to them: media, associations, partnerships you could also earn.
• Look for what they do not do: questions nobody answers well. That is your cheapest opportunity.

Copying the competition leaves you tied, and in SEO the tie goes to whoever got there first. Benchmarking shows you the floor, not the ceiling.

The formula is the usual one: (what you gained thanks to SEO − what it cost) / what it cost. The hard part is the first term.

How to estimate it reasonably:

• Measure conversions and sales from organic search (GA4, your CRM, or by asking the customer).
• Use margin, not gross sales.
• Compare with what that same traffic would have cost in Google Ads: the «value of organic traffic».
• Look at the trend over months, not weeks: SEO is an investment that matures.

About ROI calculators and SEO forecasts: they are useful for sizing scenarios, but all rest on assumptions (CTR by position, conversion rate) that change a lot, even more so with AI summaries cutting clicks. Always ask for the pessimistic scenario. A forecast with only an optimistic scenario is a brochure.

Yes, but not as in CRO. In a classic A/B test you show two versions to different people; in SEO you cannot show Google two versions (that would be cloaking). What you split is pages, not people.

How an SEO A/B test works:

• Take a large group of similar pages (product pages, city pages).
• Split them randomly into two groups with similar traffic.
• Apply a change only to the test group (for example, adding the price to the title).
• Compare the organic traffic of both groups over several weeks.

It takes many pages and quite a lot of traffic for the result not to be noise, which is why e-commerce and large sites use it most. For a small site, the alternative is changing one thing at a time and noting the date, so you can attribute what happens.

Yes, you can learn SEO for free, and in fact most professionals learned that way. The route we recommend:

• Foundation (one week): Google's SEO Starter Guide and this encyclopedia from start to finish.
• Practice (one month): a site of your own, even a hobby blog, connected to Search Console. Nothing teaches more than watching your own pages rise, fall or fail to index.
• Tools: learn Search Console, Analytics and the free version of Screaming Frog.
• Depth: free courses with certificates (HubSpot, Semrush Academy) and Google Search Central's documentation.
• Community: follow people who publish data and cases, not just opinions.

The most valued skills are not technical: writing well, understanding a business and reading data with judgment. Technical knowledge is learned in months; judgment, with experience. That is why the best SEO course is a real site with something at stake.

It depends on where you are. A guide to choosing an SEO course:

• If you are starting from zero: a short, free online course (HubSpot, Semrush Academy, Google Search Central) before paying for anything.
• If you know the basics: an advanced course focused on what you lack (technical SEO, e-commerce SEO, local SEO, WordPress) or a program with a real project.
• If you work in digital marketing: courses that integrate SEO and SEM with analytics, because that is how the work actually happens.

How to spot a good course: the teacher has their own cases you can verify; the program includes practice on a real site; it is up to date (if it does not mention AI summaries, it is more than two years old); and it does not promise «first place on Google» as the outcome. Platforms like Domestika, Udemy or Coursera have good and bad courses; always check the date and reviews. In person or online matters less than having a site to practice on.

Yes. The most reliable free SEO courses:

• HubSpot Academy: an SEO course with a free certificate.
• Semrush Academy: several free SEO and marketing courses, with certificates.
• Google Search Central: not a certified course, but its documentation and starter guide are the original source.
• Ahrefs: free video courses on beginner SEO and blogging.
• YouTube: SEO channels with good free content, if you choose well whom to watch.

A certificate from a free course will not land you a job on its own, but it structures your learning and shows interest. What does impress in an interview is showing a site you ranked: «I took this blog from 0 to 3,000 monthly visits» is worth more than ten certificates.

Google does not have a formal SEO course with a certificate, but it publishes the best foundational material there is, for free: the SEO Starter Guide and all of Google Search Central's documentation.

What confuses people is that Google does offer certifications on Skillshop, but they cover Google Ads, Analytics and other products, not SEO. There have been general digital marketing courses with certificates (like Google's Digital Garage) that introduced SEO; that offering has changed over time, so check what is currently available before enrolling.

Our recommendation: read the official guide in full (a couple of hours), watch Google Search Central's video series on YouTube and add a certified course from HubSpot or Semrush if you need a credential. What Google says about its own search engine outweighs what any course says about Google.

There is no official SEO certification from Google or from any body regulating the profession. SEO is not a licensed profession: nobody authorizes you to practice it.

What exists are certificates from companies and schools:

• HubSpot Academy: a free, well-known SEO certification.
• Semrush Academy: free certifications per course and exam.
• University programs and master's degrees in digital marketing or SEO, paid.
• Google Skillshop certifications in Ads and Analytics (useful, but not SEO).

If you are hiring, a certificate shows someone studied; not that they can do it. Ask for cases with verifiable data (Search Console screenshots, sites you can review) and ask what they would do with your site in the first 90 days. That conversation is the real exam.

Some SEO books that stand the test of time:

• The Art of SEO (Eric Enge, Stephan Spencer and Jessie Stricchiola, O'Reilly): the most complete manual, with an edition updated in 2023.
• SEO For Dummies (Peter Kent): a clear, orderly introduction, with several editions.
• Product-Led SEO (Eli Schwartz): for thinking about SEO as product strategy.
• Spanish-language manuals like «SEO: las claves esenciales», good for an organized foundation.
• Google's SEO guide: free and official, even if it is not a book.

A practical warning: in SEO, a book ages quickly on tactics and slowly on strategy. Read them to understand principles, and verify any technical recommendation against Google's current documentation.

About the pirated PDFs so many people search for: besides not paying the author, those files are a common malware vehicle. If price is the issue, Google's guide and this encyclopedia are free and current.

Google's official SEO Starter Guide is the best starting point: written by the people who build the search engine, and kept up to date.

After that, it depends on what you need:

• General SEO tutorial: the beginner's guides from Ahrefs, Semrush or Moz, free and well illustrated.
• WordPress SEO: your plugin's documentation (Yoast, Rank Math) and tutorials.
• Local SEO: Google Business Profile Help.
• Technical SEO: Google Search Central's documentation by topic.

And this encyclopedia, which works as a guide if you read it in order: chapters 1 to 6 to understand, 7 to 12 to do and measure. An SEO guide is read in an afternoon; practice is what takes months.

Sources for staying current without drowning:

• Google Search Central Blog and its Search Status Dashboard: the official announcements, including updates.
• Search Engine Land and Search Engine Journal: the industry's reference publications.
• Search Engine Roundtable: daily tracking of everything being discussed.
• Search Off the Record: the podcast by Google's own search team.
• Our notes in the search and SEO category, in Spanish, with the fine print explained.

A mental health tip: you do not have to react to every piece of news. Most «changes» that circulate are tests Google runs on a small group of users and never launches. Check official sources weekly and the rest monthly. SEO is built on consistency, not alerts.

The best-known SEO events in the world:

• BrightonSEO: in Brighton, England, twice a year; probably the largest SEO conference, with a US edition too.
• SMX (Search Marketing Expo): several editions, organized by the Search Engine Land team.
• MozCon: Moz's conference, focused on SEO and marketing.
• Search Central Live: Google's own events in various cities.

In Spanish there are annual conferences in Spain and digital marketing events across Latin America with SEO tracks, plus many webinars and online events. There are also industry awards (like the European Search Awards or the Global Search Awards) that recognize campaigns.

Are they worth attending? For learning, a good event packs into two days what would take months of reading. For selling, it depends: most attendees are peers, not clients.

Places to ask and learn from others:

• Google Search Central Community: the official help forum, with volunteer experts and sometimes Googlers. Ideal for indexing problems.
• Reddit: r/SEO for general questions and r/bigseo for professionals (yes, that is where so many «big seo» searches come from).
• LinkedIn and X: many professionals share cases and data; follow those who show evidence.
• Slack, Discord and Telegram groups in the industry.

There are also black hat SEO forums, where people share tricks to fool Google. Reading them can teach you what to avoid; applying them to a site you care about is another matter.

To ask well: share the URL, what changed and when, and what Search Console says. «My site does not show up on Google» with no more data cannot be answered by the best expert. And if your question is about this encyclopedia, write to us: we will add it.

Some names that always come up:

• Neil Patel: entrepreneur and digital marketing educator, owner of the Ubersuggest tool and the agency NP Digital. He produces a huge amount of content; use it as an introduction and cross-check the data with other sources.
• Rand Fishkin: co-founder of Moz and now SparkToro; known for his studies on zero-click searches.
• John Mueller: search advocate at Google; answers the community's questions publicly.
• Aleyda Solís: Spanish consultant, an international reference in technical and international SEO.
• Luis M. Villanueva: SEO consultant and educator in Spain.
• Chase Reiner: SEO content creator on YouTube.

The rule for any expert, us included: they are worth what they can demonstrate. Prefer whoever shows data, cases and sources over whoever sells certainty. In SEO, certainty usually comes with a course attached.

You are in one. This page is called Dicseonary because besides being an encyclopedia it is a glossary: each tile defines a term (SEO, SERP, CTR, canonical, sitemap, slug, E-E-A-T, NAP, long tail…) and is marked up with glossary structured data so machines understand it too.

SEO language has three layers worth telling apart:

• Technical terms with precise definitions: indexing, canonical, hreflang, 301 redirect.
• Tool metrics, which each company defines its own way: domain authority, keyword difficulty, SEO score.
• Industry jargon, which changes with fashion: GEO, AEO, link juice, parasite SEO.

For official definitions, Google Search Central's documentation has its own glossary. Wikipedia's entry on search engine optimization is a good historical summary. And if you are looking for a term that is not here, use the search box above: if it does not show up, send it to us and we will add it.

The trends already changing the work, not the ones trending on LinkedIn:

• AI Overviews and AI Mode on Google: fewer clicks for informational searches; more value for brand and transactional ones.
• Brand as a central signal: being searched by name is worth more than winning a generic keyword.
• Preferred sources: Google lets users choose outlets and sites to see more of; sites can ask their readers to do so.
• Forums and real opinions (Reddit and the like) with more visibility.
• Video and visual formats inside the results page.
• AI crawlers: deciding what you let them read and how you get cited.
• Pricier search data: Google is making its results harder to extract, which raises tool costs.

The underlying trend has not changed in twenty years: the search engine tries to act like a knowledgeable person. SEO that prepares for that does not need to change strategy every six months.

Not many official ones, but there are playful ways to train your search instinct:

• Google Feud: an unofficial game where you guess how Google autocompletes a search. Surprisingly good training for thinking like your customers.
• Guess the SERP: before searching something, write down what you expect on top (a map? videos? an AI summary?). Then compare. Do it with your team.
• The title game: three people write a title for the same page; publish them in turn and measure which gets more clicks in Search Console over a month.
• Result simulators: tools showing how your title and description would look on Google before publishing.

And one serious game: search, in incognito mode, the ten questions your customers ask most. Count how many times you appear. That score does matter.

An SEO (that is what the person working in search optimization is called) makes sure the company appears in search engines when customers look for what it offers. In a normal week:

• Checks Search Console and Analytics: what rose, what fell, what broke.
• Researches what people search and decides which pages to create or improve.
• Works with development to fix technical issues.
• Works with content so texts answer well.
• Earns mentions and links, sometimes through PR or partnerships.
• Reports results and defends priorities to the rest of the company.

Being an SEO is largely being a translator: you explain to developers what the search engine needs, to writers what people search for, and to management why results take months. In a small company, SEO is usually done by a marketing person on top of other tasks; in large ones there are full teams.

An SEO specialist executes and coordinates optimization work: audits, keyword research, on-page optimization, results tracking and reporting. An SEO expert is usually someone with more years and cases, able to design the strategy and not just apply it.

What sets a good SEO professional apart:

• Explains decisions with data, not faith.
• Knows how to say «that cannot be promised».
• Understands your business: what you sell, to whom and at what margin.
• Knows enough of the technical side to work with developers.
• Writes well, or knows how to recognize who does.

Many specialists also handle SEM (ads), since the two overlap constantly. If you are hiring a search optimization expert, ask to see a case with the before and after in Search Console, and ask what went wrong on some project. Whoever has never made a mistake has never done SEO.

An SEO consultant advises: diagnoses, sets the strategy and prioritizes, often leaving execution to your team. Typical SEO consulting includes an audit, an action plan, training and periodic reviews.

It makes sense when:

• You have a team that can execute but lacks direction.
• You are about to do something risky: a redesign, migration, platform or domain change.
• Your traffic dropped and you need an outside diagnosis.
• You want a second opinion on your current agency.

It does not make sense if nobody at your company will implement the recommendations: you end up with an excellent document and the same site. In that case you need an agency or a team that executes.

Professional SEO consulting is billed by the hour, per project or as a monthly retainer. A good consultant leaves you more capable than before; a bad one leaves you dependent.

An SEO analyst works mainly with data: reviews organic performance, spots drops and opportunities, audits the site and prepares reports that support decisions. It is the role that spends the most hours in Search Console, Analytics, crawlers and spreadsheets.

Typical tasks:

• Tracking rankings and traffic by page and by query.
• Periodic technical audits.
• Competitor and keyword gap analysis.
• Crossing SEO data with sales or conversions.
• Reports and alerts.

Skills that SEO analyst job ads ask for: advanced Excel or Google Sheets, SEO tools (Semrush, Ahrefs, Screaming Frog), GA4 and Search Console, and increasingly SQL, Python or Looker Studio. The analyst role is often the doorway into SEO: you quickly learn how everything works by looking at data from many sites.

An SEO manager leads a company's SEO or several accounts: sets strategy, prioritizes, coordinates specialists, writers and developers, and answers for results. In large companies there is also a head of SEO or SEO director, who brings the discipline to the leadership table.

Most of what an SEO manager does is not technical SEO: it is management. Negotiating priorities with engineering (which has a hundred requests), aligning with content and brand, justifying budget, and translating search metrics into business language.

Neighboring roles: the SEO project manager coordinates specific projects (migrations, launches); the SEO-focused content manager directs content production; and the community manager with SEO knowledge makes sure social also contributes. You recognize a good SEO manager because their team can explain why it does what it does.

An SEO writer (or SEO content writer) writes texts that answer specific searches and that search engines can understand: articles, service pages, product pages, categories, guides.

The job does not start with writing: it starts with researching what people search, what ranks on top today and what those pages lack. Then comes writing with clear structure, the answer up top, useful headings and the customer's vocabulary, plus optimizing the title and meta description.

With AI generating drafts in seconds, the writer's value has shifted: less typing, more judgment. Checking facts, bringing real experience, interviewing the company's experts, giving the brand its own voice and deciding what not to publish. An SEO writer who only fills templates competes with a free machine; one who thinks writes what the machine cannot invent.

It is the profile that bridges SEO and development: understands how search engines crawl and index, and can touch the code or talk as an equal with those who do. Also called SEO engineer or technical SEO specialist.

They handle: rendering and JavaScript, URL architecture, redirects and migrations, speed and Core Web Vitals, structured data, sitemaps, hreflang, server logs and automation with Python or scripts.

There are also web designers and developers who specialize in «SEO-friendly sites»: they build with the search engine in mind from the first wireframe. It is one of the scarcest and best-paid profiles in the field, because few master both disciplines. If you are a developer who wants to get into SEO, you are halfway there: what is left is learning to think in searches and content.

The most common roles in SEO job postings: SEO analyst, SEO specialist, SEO writer, technical SEO, SEO manager and, at agencies, consultant. There is a fair amount of remote work, including for companies in other countries.

Usual requirements:

• Search Console, GA4 and some suite (Semrush, Ahrefs).
• Basic HTML and how a CMS like WordPress works.
• Analytical skills (spreadsheets, reports) and good writing.
• English, especially for remote roles.
• Demonstrable experience, even if on your own projects.

For your SEO résumé or portfolio: show results with numbers and screenshots («took this site from 2,000 to 9,000 monthly clicks in 8 months»), not a list of tools. If you are starting from zero, build and rank a site of your own: it is your first case. Look on LinkedIn, specialized job boards and agency career pages.

It depends heavily on four things: seniority, English, technical skills, and whether you work for the local market or remotely for foreign companies. A senior SEO with English and a technical profile can earn several times what a beginner does, and remote work for US or European companies usually pays well above local markets.

We are not going to invent a figure for you: salaries change fast and the averages that circulate often come from small surveys. What does work to find out current pay in your country:

• Review twenty job postings that publish a salary range and take the median per role.
• Compare on LinkedIn and Glassdoor, knowing they are self-reported.
• Ask in SEO communities: people share ranges more honestly than you would think.

And if you are freelance, the useful question is different: how much to charge. It is in the tile next door.

A freelance SEO is an independent professional working per project or per month. It makes sense when you need someone with specific experience without paying for an agency's structure, and you are clear on what you want (an audit, a migration, optimizing a small site).

Risks to weigh: one person cannot cover technical, content, links and analytics at the same depth; if they get sick or leave, the knowledge leaves too; and quality varies enormously.

About Fiverr and similar platforms: there are good professionals, but «complete SEO for 20 dollars» or «100 high-authority backlinks» packages are almost always spam links or automated reports. To hire a freelance SEO, ask for verifiable cases, define concrete deliverables and start with a bounded project. If it goes well, expand.

To price your SEO work, calculate from your costs, not from what the cheapest person in the market charges:

• Set your real hourly rate: what you need to earn per month divided by billable hours (never all of them; there is sales, admin and learning).
• Estimate hours per deliverable: an audit, a month of optimization, a report.
• Add tools: SEO suites cost money and belong in your price.
• Pick a model: fixed project (audits, migrations), monthly (ongoing work) or hourly (consulting).

A transparent reference: at Mamífero we publish our unit of work, the UC, which equals half a day of lab time (person plus tools) and costs $39,990 CLP + VAT, with a five-unit minimum. Avoid charging per ranking or for guaranteed results: they depend on Google, not on you, and it is the fastest road to a conflict with the client.

Selling SEO means selling something intangible that takes months. What works:

• Start with a free, brief diagnosis of the client's site: three concrete problems with screenshots convince more than any deck.
• Talk business, not tech: «1,200 people a month search for what you sell in your area and do not find you».
• Promise work, not rankings: what you will do, how often and how you will report it.
• Show cases with before and after.

A sample SEO proposal should include: a summarized diagnosis, measurable goals, a phased plan, monthly deliverables, realistic timelines, price and what you need from the client (access, approvals, someone to publish). SEO leads come largely from referrals and your own content: an agency that does not rank its own site has a credibility problem. If you resell third-party SEO (white label or reseller), be transparent about who does the work.

An SEO agency (or SEO company) takes charge of getting your site to show up in search engines: it audits, sets the strategy, optimizes, produces content, earns links and reports results. Many are digital marketing agencies offering SEO alongside SEM, social and design.

What you should get from an SEO agency:

• An initial diagnosis with priorities, not just a list of errors.
• A plan with concrete monthly deliverables.
• Access to your own data (Search Console and Analytics in your name, not the agency's).
• Reports connecting the work to visits and sales.
• Honesty about timelines and about what cannot be promised.

One telling detail: an SEO agency that does not rank its own site for what it sells has a consistency problem. We, by the way, are not an agency: we are a creative lab with our own tools and published prices.

There is no «best SEO agency» in the abstract: there is the best one for your size, industry and budget. «Top 10 SEO companies» lists are usually paid directories or articles written by the agencies themselves.

Questions to choose well:

• Can they show cases from my industry or size, with verifiable data?
• Who will work on my account? The person selling to me or someone I have never met?
• What exactly do they deliver each month?
• Do the accounts and data stay in my name?
• What happens if I want to end the contract?

Red flags: they guarantee first place, will not explain what they do («it is our secret method»), sell link packages, demand long contracts with no exit, or their own site does not rank. A big company is not always better for a small business: your account may be the smallest in its portfolio.

To choose an SEO agency in Chile, add three local things to the usual questions:

• They understand how Chileans search: «pega» (job), «carpeta tributaria» (tax file), «boleta» (receipt), «despacho a regiones» (shipping outside Santiago). A provider translating strategies from another country misses the searches that matter here.
• They know the local terrain: Google Business Profile by district, Chilean portals and marketplaces, local media for mentions.
• Clear prices in pesos, VAT included or stated, and contracts you can end.

In Santiago you will find everything: marketing agencies with an SEO department, independent consultants and specialized teams. From what we see in the market, a traditional agency charges from around 400,000 pesos up to several million per month.

We are a creative lab in Santiago and publish our prices: the Micro plan, which includes SEO with a technical audit, rank monitoring and an optimized Google profile, starts at $210,000 CLP + VAT per month. The rest is on plans and services (in Spanish).

SEO in Chile's regions has a huge advantage: less competition. Ranking for «dentist in Temuco» or «employment lawyer in Concepción» is usually much easier than the same in Santiago, because fewer businesses work on their Google presence.

What pays off most for a regional business:

• A flawless Google Business Profile, with reviews and photos.
• Pages per city or district you serve, with real content (address, area, local cases), not the same page copied with the name swapped.
• Mentions in local media and directories: regional newspapers, chambers of commerce, universities.

Do you need an SEO provider in your city? Not necessarily: the work is done remotely without issue. What you do need is someone who understands how people search in your area. In Viña del Mar and Valparaíso, for example, many people search with both cities in mind, which changes which pages you should have.

It can pay off on price or specialization, but there is an underestimated risk: Spanish search vocabulary changes by country. Mexicans search «celular», Spaniards «móvil»; in Chile it is «polera» for a T-shirt, in Argentina «remera». An agency from another country can do flawless technical work and get the words wrong.

If you hire abroad:

• Ask for keyword research done with data from the country where you sell.
• Check that they know your local platforms (marketplaces, portals, media).
• Agree on currency, taxes and meeting hours from the start.

SEO agencies in Madrid, Barcelona, Mexico City, Buenos Aires or Bogotá that work well for Latin America do exist; the key is that they have cases in your country. And the reverse: to rank in Spain or Mexico from Chile, you need someone who knows those markets, not just a translation.

They make sense if you sell in those markets. An agency in London, Los Angeles, Toronto or Sydney knows its country's competition and media, and that is worth a lot if you want to rank in English there.

To rank in Chile or Latin America, on the other hand, it rarely pays off: they bill in dollars or pounds, work in another time zone and do not know local searches.

Offshore agencies (India, Pakistan, the Philippines, Malaysia) offering SEO at very low prices are a separate case. There are serious teams, but also a lot of mass email selling with «first place» promises and low-quality link packages. If you get an email saying they found «critical errors» on your site and offer to fix them for 99 dollars, it is a template: it went to thousands.

General rule: hire SEO where your customer is, not where the cheapest offer is.

A complete SEO service usually includes:

• Initial audit: technical, content and links.
• Strategy: keywords, pages to create or improve, priorities.
• Monthly optimization: titles, copy, structure, technical fixes.
• New content, per the plan.
• Authority: mentions and links earned legitimately.
• Local SEO, if you have a physical location.
• Monthly measurement and reports.

Before hiring SEO services, check: which concrete deliverables arrive each month, who implements changes on your site (them or your team?), how long the contract lasts and how it ends, and that your data stays in your name.

And if you are about to hire: first define what you want to achieve (more inquiries, more online sales, showing up in your area). «We want to be first on Google» is not a goal; «we want people searching for air conditioning in Maipú to find us» is.

SEO pricing depends on what is included, the site's size and who does it. Reference ranges in Chile:

• One-off audit: from a few hundred thousand pesos for small sites to millions for large ones.
• Monthly service for small businesses: from what we see in the market, traditional agencies start around 400,000 pesos a month and go up to several million.
• Freelance: highly variable, depending on experience.

At Mamífero we publish ours: the Micro plan costs $210,000 CLP + VAT per month, Small $690,000 CLP and Medium $1,890,000 CLP, and they include SEO, CRO, social and reports. Custom services are priced in UC: $39,990 CLP + VAT per unit (half a day of lab time).

To compare quotes, do not just look at the number: look at what is inside. Two 500,000-peso proposals can be one with ten hours of real work and another with an automated report. And beware SEO charged «per ranking»: it sounds fair, but it rewards easy searches that do not sell.

Sometimes yes, and sometimes it ends up very expensive. «Cheap» can mean two very different things:

• Efficient: someone who automated the repeatable work and charges less because they work better. That is good, and it is exactly our model.
• Shady: spam link packages, mass-generated unreviewed text, automated reports with no work behind them. That can cost you the rankings you already had.

How to tell them apart: ask exactly what is done each month and by whom; ask to see a real report; and distrust fixed prices for «100 backlinks» or «guaranteed first place».

The useful question is not «how much does it cost?» but «how much does each customer it brings cost me?». An affordable SEO service that brings three customers a month is cheaper than an expensive one bringing one. And a cheap one that loses what you had is the most expensive of all.

A small business does not need to do all the SEO in the world: it needs to nail what pays off most on a small budget. In order:

• 1. Google Business Profile, complete, with reviews. For local businesses it comes first and is almost free.
• 2. A fast, clear site with one page per main service or product.
• 3. Search Console connected, to know what is going on.
• 4. Content answering your customers' pre-purchase questions: prices, timelines, comparisons.
• 5. Reviews and local mentions.

For startups, SEO is usually a medium-term investment: it pays to start early with the technical base and product content, while growing through other channels.

Mamífero's plans were born for exactly this: the service a big brand gets at the cost a small business can pay, from $210,000 CLP + VAT per month, with the website included in the Micro tier if you do not have one. Details on plans (in Spanish).

No. Nobody can guarantee first place on Google, and Google itself says so in its guide to hiring an SEO. Results depend on an algorithm nobody outside Google controls, on the competition and on what each person searches.

When someone guarantees first place, one of these is usually going on:

• They guarantee positions for searches nobody makes («employment lawyer with an office at such-and-such street number»).
• They confuse paid ads with organic results.
• They use tricks that work for a while and then sink your site.

What can be guaranteed: the work. What will be done, how often, how it will be measured and which intermediate milestones to expect. A good provider tells you which searches are realistic, in how long and why. That honesty is the guarantee that matters.

Tourism SEO competes with giants: Booking, Expedia, Airbnb, Tripadvisor and Google Hotels itself take almost the whole first page for «hotel in Pucón». Fighting those searches head-on is expensive. What works:

• Your brand and your profile: make sure people who already know you find you and book direct, without paying commission. A flawless Google profile and direct booking links.
• Experience searches, not category searches: «cabins with hot tub in Pucón», «pet-friendly hotel in Valparaíso», «what to do in Chiloé in winter».
• Destination content: useful guides to the area that attract people still planning.
• Several languages: foreign tourists search in English or Portuguese.
• Reviews, on Google and on the platforms.

For tour operators, the same: specialize. «Tours» cannot be won; «stargazing tour in the Elqui Valley» can.

SEO for lawyers is local and trust-based. People search «employment lawyer in Santiago», «family lawyer in Concepción», «how much does a divorce lawyer charge», and decide based on specialty, proximity and reviews.

What works:

• One page per practice area and case type, explaining the process, timelines and what documents you need.
• Clear answers to real questions: «how long does an employment lawsuit take?», honestly.
• Identified authors: real lawyers, with their track record. Google demands more trust on legal topics, which affect people's lives.
• A Google profile per office and client reviews.

Check your bar association's ethics rules on advertising: promising outcomes in a lawsuit is often frowned upon or forbidden. The same goes for SEO: a firm promising «we win your case» in its title is digging two holes at once.

In real estate, portals (in Chile, Portal Inmobiliario, Toctoc and similar; Zillow-type sites elsewhere) dominate generic searches like «apartment for sale in Ñuñoa». A developer or agency rarely beats them there. Real estate SEO that works looks for other spaces:

• Project pages with all the information: location, floor plans, prices, construction progress, real photos.
• Neighborhood or district pages with useful data: schools, transport, services, appreciation, told from local knowledge.
• Your brand and each project's name: whoever saw an ad will search you by name.
• A Google profile for the sales office.
• Buying guides: subsidies, mortgages, down payment, closing costs.

For realtors, the key is geographic specialization: being the reference for two or three neighborhoods is worth more than appearing timidly across the whole city.

Healthcare is where Google is most demanding: it considers it a topic that can affect people's lives and asks for more signals of experience, expertise and trust (E-E-A-T).

What SEO for clinics, medical centers and dentists needs:

• Content reviewed by identified professionals, with name, specialty and license, and a review date.
• One page per treatment or specialty, covering what it is, for whom, how long it takes, approximate cost and how to book.
• Strong local SEO: a Google profile per location, hours and reviews.
• No miracle promises, context-free before-and-afters or generic medical advice.

For hospitals and large clinics, the challenge is usually technical (huge sites, physician search, scheduling) and coordination across departments. And one tip that applies to all: answer the questions patients ask on the phone. Those are your best keywords.

B2B (business-to-business) and industrial SEO follow a different logic from consumer SEO: few searches, very specific and very valuable. «Stainless steel butterfly valve DN100» has little volume, but a single sale can pay for a year of work.

What works:

• Complete technical specs in HTML, not just PDF: specifications, standards, applications, compatibilities.
• Content for every stage of a long purchase: whoever researches, whoever compares and whoever approves search for different things.
• Application cases by industry (mining, agribusiness, construction).
• Pages for the technical buyer and for the financial one, who read differently.
• LinkedIn as a complement to search.

A B2B SEO strategy is measured in sales opportunities, not visits. If a page brings thirty visits a month and two large quotes, it is your best page even if nobody notices it in the traffic report.

Every industry has its trick:

• Car dealers: up-to-date inventory pages with complete data per vehicle, plus content per model and comparisons. Sold vehicles are not deleted without a redirect.
• Photographers: image SEO (file names, alt text) and local SEO («wedding photographer in Puerto Varas»). The portfolio needs text, not just photos.
• Electricians, plumbers, locksmiths: pure local SEO, with urgent searches («24-hour electrician in Maipú»): Google profile, visible phone number and reviews.
• Finance: like health, a sensitive topic for Google; it demands identified authors, sources and regulatory transparency.
• Online gambling and casinos: one of the most competitive and spam-ridden industries in the world, full of bought links and parasite SEO, with regulation that changes by country. If you work there, comply with local law before any tactic.

The common rule: answer what your customer asks before buying, in their own words.

In SEO jargon, a niche is a narrow topic on which a site is built to rank and monetize, usually through ads or affiliate links: «capsule coffee machines», «climbing gear», «indoor plants».

How to choose a niche:

• Real demand: searches with enough steady volume.
• Monetization: products or services someone pays for, with reasonable commissions.
• Competition you can beat: no giants or media dominating everything.
• Your own knowledge or interest: you will be writing about it for years.

The 2026 warning: niche sites built only for Google (generic reviews of products the author never tried) are exactly what recent updates punished and what AI summaries replace. A niche works today if you bring real experience: your own tests, photos, measurements, opinion with judgment. If you cannot bring that, the niche is no longer yours.

They look alike, but have nothing in common:

• CEO (Chief Executive Officer) is a company's top executive: the person with the highest management role.
• SEO (Search Engine Optimization) is optimizing for search engines, or the person who does it.

In Spanish they are pronounced almost identically («se-o»), which is why the typo is so common among Spanish speakers. If someone in a Latin American office says «we need to talk to the SEO», they may mean the general manager or the digital marketing person, and the conversation will be very different.

An easy way to remember: the CEO decides where the company is going; the SEO makes sure people find it when it gets there. And the day a CEO understands SEO, half of all marketing meetings will take half the time.

In English, an SEO is standard, because it is pronounced letter by letter: «ess-ee-oh». «A SEO» only works if you pronounce it as a word, which almost nobody does.

Other writing doubts people search for:

• Capitals: SEO, because it is an acronym. «Seo» in lowercase is a Korean surname or an old Aragonese word for cathedral.
• Plural: «SEOs» in English is fine; «SEO's» with an apostrophe is a classic mistake.
• In Spanish: people say «el SEO» (masculine) and sometimes «la SEO»; Italians say «la SEO».
• «SEOing» or «to SEO something»: office jargon for optimizing a page. It is in no dictionary and probably never will be.
• «Seó»: a typo with an accent that, amazingly, has its own search volume.

And no, typing «www seo» or «seo.com» will not take you to SEO's official website: nobody owns it.

Almost every language says SEO, but each has its own long name:

• Spanish: posicionamiento web or posicionamiento en buscadores. «¿Qué es el SEO?» is the most common query.
• Portuguese: «O que é SEO?». It is called otimização para mecanismos de busca, and an agência de SEO is an agency.
• French: «SEO, c'est quoi ?». The French call it référencement naturel; ranking is positionnement. An agence SEO is an agency.
• German: «Was ist SEO?». Suchmaschinenoptimierung, one of those long words German loves. An SEO-Agentur is an agency.
• Italian: «Cos'è la SEO?», in the feminine. A consulente SEO is a consultant; analisi SEO, an analysis; libri SEO, books.
• Norwegian: internasjonal SEO is, yes, international SEO.
• Korean: 검색엔진 최적화 (geomsaek-enjin choejeokhwa), though they also say SEO.

If you want to rank in another language, the difference matters: people in France do not search «SEO agency», they search «agence de référencement». That is why international SEO is not translation, it is new research.

Because Seo (서) is both one of South Korea's most common surnames and a very popular syllable in given names. As a surname (like Seo In-guk's or Seo Ye-ji's) it almost always corresponds to the Chinese character 徐. As part of a given name (the Seo in Park Seo-joon or Kim Min-seo) it can come from characters meaning things like «auspicious» (瑞), «book» (書) or «dawn» (曙); the meaning depends on the character the family chose. Names like Seo-yeon and Seo-jun spent years among the most popular for newborns.

The fun fact comes from the searches this encyclopedia was built on: names of Korean people containing «Seo» add up to almost as much search volume as all marketing SEO combined. «seo in-guk» alone is searched more than twice as much as plain «seo», and four times as much as «qué es el SEO».

One more coincidence: Seo (瀬尾) is also a Japanese surname, which is why it appears in anime. SEO moral: the same word can mean completely different things, and the search engine has to guess which you want. In Korea, by the way, the most used search engine is not Google, it is Naver.

In Spanish, seo is also a word over a thousand years old: in Aragon it means cathedral, from the Latin sedes, «seat», because it is the bishop's see. The Spanish Royal Academy's dictionary lists it that way.

• La Seo in Zaragoza is the Cathedral of the Savior, steps away from the Plaza del Pilar: it mixes Romanesque, Mudéjar, Gothic and Baroque styles, and shares the title of the city's cathedral with the Pilar basilica.
• La Seu d'Urgell (La Seo de Urgel in Spanish) is a town in the Catalan Pyrenees named after its cathedral. By old tradition, its bishop is co-prince of Andorra, together with the President of France.

So if someone in Zaragoza says they are going «to La Seo», they are not heading to a marketing meeting: they are going to mass, or sightseeing. It is probably the only SEO that has gone centuries without an algorithm change.

In Spanish, quite a few, and almost all of them lovely:

• deseo (wish), paseo (stroll), aseo (cleanliness), museo (museum), coliseo (coliseum), fariseo (Pharisee), manoseo (pawing).
• And the Greek heroes as Spanish spells them: Perseo (Perseus, who beat Medusa), Teseo (Theseus, of the Minotaur's labyrinth) and Odiseo (Odysseus, whom the Romans called Ulysses).

The search «Perseo, Teseo y otros seos» really exists, and sounds like a school assignment on Greek mythology. We would add one more: SEO, which has a bit of every word on the list. It is a wish (to rank first), a long stroll (it takes months), it needs cleanliness (tidying your site), sometimes it feels like a labyrinth with a Minotaur included, and the way back looks a lot like the Odyssey.

In English the list is shorter: words ending in «-eo» like rodeo or video rhyme, but do not end in «seo». A poet forgives; a search engine does not.

Three «SEOs» that have nothing to do with Google:

• SEO/BirdLife is the Spanish Ornithological Society (Sociedad Española de Ornitología), founded in 1954: one of Spain's oldest conservation organizations and a BirdLife International partner. Its website is seo.org, probably the best SEO domain in the world, and it belongs to birdwatchers.
• Seos is a smart credential technology from HID Global: access control cards and readers (the well-known iCLASS Seos cards for entering offices). It sounds similar, but it opens real doors.
• SeO in chemistry would be selenium (Se) plus oxygen (O). Selenium monoxide is not a stable compound in common use; the ones actually used are selenium dioxide (SeO₂) and trioxide (SeO₃).

Marketing SEO, on the other hand, does not open doors, does not fly and does not react with oxygen. Although sometimes it does blow up.

There is no official SEO logo: it is a discipline, not a brand, and nobody owns it. Nor is there a «Google SEO logo». That is why industry presentations almost always use the same symbols: a magnifying glass, an upward arrow, a bar chart or a podium.

If you need an SEO icon in PNG, SVG or GIF for a presentation or your site:

• Google's Material Symbols and Font Awesome have free search and magnifying glass icons with open licenses.
• The Noun Project and Flaticon have thousands of SEO icons; check whether they require attribution.
• Avoid free stock images without a clear license.

A more memorable idea: skip the magnifying glass. Everyone uses the magnifying glass. This encyclopedia uses colorful Bauhaus-style tiles, one per question, and nobody will confuse them with another SEO presentation.