What is the difference between SEO, GEO and AEO services?

SEO services work on ranking your pages in search results. AEO services work on getting your brand named in AI answers like ChatGPT and Google AI Overviews. GEO is mostly a newer name for the same AEO work, with more focus on generative engines.

Is GEO just a new name for AEO?

Mostly. GEO came out of a 2023 research paper on optimising content for generative engines; AEO is the older, broader term that also covers voice assistants and featured snippets. Today both point at the same goal: being named or cited in AI-generated answers.

Will AEO replace SEO?

No. Answer engines retrieve and cite web pages, and Google's AI Overviews use the same index as regular search. Pages that rank well are the pages most likely to be read by an engine. AEO adds a measurement layer on top of SEO; it does not remove the foundation.

Do I need different content for AEO than for SEO?

Usually the same pages with a different shape: the answer first, clear definitions, comparison tables, an FAQ block. Content that is good for a featured snippet is close to what an answer engine wants to quote.

Which should a small team focus on?

Keep the SEO basics running, because they feed everything else, and start measuring AEO now while your category is uncontested in the answers. Measurement costs an hour a week; it tells you whether anything else is worth doing.

SEO vs. AEO vs. GEO: What's the Difference?

SEO, AEO and GEO are related but distinct. This guide breaks down each term, how they overlap, and where to focus your effort in 2026.

The acronyms are multiplying, and the definitions online contradict each other. Here is a plain breakdown of SEO, AEO and GEO: what each one means, where they overlap, where they genuinely differ, and where a small team should put its hours in 2026.

SEO: Search Engine Optimization

The original discipline. SEO earns a position on a search results page: technical health so the crawler can read the site, content that matches what people search for, and links that tell the engine the site is worth ranking.

Its unit of success is a page ranking for a keyword, measured as a position in a rank tracker. The results page keeps changing shape, with ads, snippets, maps and now AI Overviews, but the core loop of crawl, index, rank has not.

SEO still matters for everything below: the pages answer engines read and cite are, overwhelmingly, pages that already rank.

AEO: Answer Engine Optimization

AEO is the work of being named and cited inside a generated answer: the paragraph ChatGPT writes, the Gemini response, the Perplexity summary, the Google AI Overview. Success shifts from ranking a page to being one of the two or three names in the answer.

The term predates the current wave; it was first used for featured snippets and voice assistants. What is new is scale: answer engines now handle the research and comparison questions that used to send buyers to ten blue links.

AEO has its own measurement, and most guides skip it. There is no position. There is a mention rate across a fixed set of prompts, a citation rate for your site as a source, and a share of voice against competitors named alongside you, each tracked per engine. Our complete guide to AEO covers this in detail.

GEO: Generative Engine Optimization

GEO comes from a 2023 academic paper, GEO: Generative Engine Optimization, which tested which content changes made a page more likely to be included in a generative engine's answer.

In practice, GEO emphasises the content side: cite sources, include statistics, use clear definitions, structure for quotation. AEO, as most people use it, covers the whole goal, including measurement and the off-site corroboration that gets a brand named at all. Honestly, they describe the same goal from slightly different angles. Pick one term for your team and move on.

How the three compare

	SEO	AEO	GEO
Target	Ranking algorithms	Answer engines (ChatGPT, Gemini, Perplexity, AI Overviews)	Generative models specifically
Goal	Rank a page	Be named or cited in the answer	Be included in the synthesised response
Unit of success	Page + keyword	Brand + prompt	Content + prompt
Success metric	Position, clicks	Mention rate, citation rate, share of voice	Inclusion in the response
Content style	Keyword-aligned pages	Clear, citable answers; consistent entity	Cited, statistic-rich, quotable passages
Where measured	Rank tracker	Prompt tracker, per engine	Same as AEO

Where they overlap

The same pages do the work. Answer engines that search the web tend to read pages that rank. Google's documentation on AI features and your website says there is no special markup for AI Overviews; the usual guidance applies.
Clear content wins in both. A page that answers in its first sixty words, uses question headings and puts comparisons in a table does well in snippets, in AI answers and with people.
Authority is authority. Links, reviews, listings and mentions on trusted sites tell a ranking algorithm the page matters, and tell an answer engine the brand is worth naming.

Where they genuinely differ

Page versus entity

SEO is won page by page. AEO is won at the entity level: the engine decides whether to name your brand from everything it can find about you. A brilliant page will not get you named if your listings call you something else and your reviews are three years old.

Position versus rate

An SEO position is a fact you can check at any moment. An AEO mention is a probability: the same prompt can name different brands on different days, so you measure it as a rate over repeated runs.

One engine versus several

For most sites SEO means Google. AEO means at least four engines that disagree, refreshed on different schedules from different sources. See how they differ on our ChatGPT tracker, Gemini tracker and AI Overviews tracker pages.

Where to focus in 2026

Do not abandon SEO. It feeds the answer engines and still drives most measurable traffic.

Do start measuring AEO now, because most brands are flying blind on it. It is cheap: twenty to fifty buyer prompts, a weekly check on the engines your buyers use, and three columns per prompt (named, cited, who else). Our walkthrough on tracking your brand in ChatGPT shows the routine.

Then judge every new tactic by which number it moves. If it improves rankings, it is SEO. If it improves your mention rate or share of voice, it is AEO, whatever the article that recommended it called it.

Presence Scout measures your brand across Google and the AI answer engines, so your SEO, AEO and GEO work all have a number to move. Add your brand free and get your first baseline this week.