What is AEO (answer engine optimisation)? A plain-English guide for small businesses

What is AEO? The AEO meaning is simple: it stands for answer engine optimisation. It's the work of making your pages easy for AI answer tools, such as Google AI Overviews, AI Mode and ChatGPT, to understand, quote and link to. If that sounds like a whole new job, here's the good news: Google says that, from its side, this is "still SEO". So for a small business, AEO mostly means doing the basics properly rather than buying a new trick.

This guide is for owners of small UK businesses (cafés, trades, local firms, online shops) who keep hearing the term and want a straight answer.

What is AEO? (answer engine optimisation meaning)

AEO is the work of making your pages easy for AI answer tools to understand, quote and link to. An "answer engine" is a tool that writes an answer to a question and may link to its sources, instead of only showing a list of links. Google AI Overviews, Google's AI Mode and ChatGPT search all work this way.

Google's own guide to optimising for generative AI features puts it simply: "'AEO' stands for 'answer engine optimization' and 'GEO' for 'generative engine optimization'". Both, it says, are terms "used to describe work specifically focused on improving visibility in AI search experiences".

One UK aside, because it trips people up: in customs, AEO also means Authorised Economic Operator, a status for businesses in the international supply chain. If that's what you were looking for, GOV.UK explains the types of Authorised Economic Operator status.

How answer engines pick what to show

For Google, AI answers are built on the same systems as normal search. Google says its AI features "are rooted in our core Search ranking and quality systems". In practice that means:

• They pull from the Search index. Google calls this retrieval-augmented generation, or grounding: its systems fetch relevant pages from the index, then use them to write the answer and show links to them.

• They may run several searches at once. Google calls this "query fan-out": the model fires off related searches to gather more results for one question.

• Your page has to be in the index. To show as a supporting link, Google says a page "must be indexed and eligible to be shown in Google Search with a snippet".

ChatGPT works differently. ChatGPT search uses OpenAI's own crawler, OAI-SearchBot, and OpenAI's crawler page says sites that are opted out of it "will not be shown in ChatGPT search answers, though can still appear as navigational links". We cover the details in how ChatGPT search finds websites.

Beyond that, nobody outside these companies knows exactly how each source gets chosen. Anyone who says otherwise is guessing.

AEO vs SEO: what's actually different?

For Google, very little. Google's guide says "optimizing for generative AI search is optimizing for the search experience, and thus still SEO". Its page on AI features and your website adds: "There are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary." The later guide (updated 10 July 2026) adds one site-level condition: the site must be included in Search generative AI features in Search Console, where Include is the default (see crawling and indexing below).

What does change is where you might show up and how you check it:

• Where you appear: Classic SEO: a link in the search results. AEO: a link or source inside a written AI answer.

• What gets you there: Classic SEO: crawlable, indexed, helpful pages. AEO: the same crawlable, indexed, helpful pages.

• How you check: Classic SEO: Search Console Performance report. AEO: the same report, plus Search Console's Generative AI performance report.

So the work is the same. The places you look for results are not.

AEO vs GEO: two names for overlapping ideas

GEO stands for generative engine optimisation. It and AEO are both loose labels for getting your content used in AI-written answers, and people often use them to mean the same thing. Google's guide defines both in the same sentence and treats them the same way: as SEO.

You'll see blog posts that draw a neat line between the two. No primary source we've found fixes a difference, so we don't claim one. If someone sells you AEO and GEO as two separate jobs, ask them what they'd do differently for each.

What Google says you don't need for AEO

Google's guide has a section on "what you don't need to do". For Google Search, you can ignore:

• llms.txt and other "special" files. Google says you don't need new machine-readable files or AI text files, "as Google Search itself doesn't use them".

• "Chunking" your content. There's "no requirement to break your content into tiny pieces for AI to better understand it".

• Rewriting just for AI. "You don't need to write in a specific way just for generative AI search."

• Chasing inauthentic mentions. Seeking inauthentic mentions of your business around the web "isn't as helpful as it might seem".

• Special schema. Google says "there's no special schema.org markup you need to add", although structured data still helps with rich results.

Google also warns against making a separate page for every way someone might phrase a question. Doing that mainly to manipulate rankings or AI answers breaks its scaled content abuse spam policy.

What a small business can do this month

Start with the basics Google already rewards. None of these needs special software.

Answer your customers' real questions, near the top of the page

Write down the questions people ask you on the phone or at the counter, then answer each one clearly on your site, with the answer first. Write from what you actually know. Google's guide favours "non-commodity" content: first-hand, expert takes rather than a rehash of what's already online. A plumber explaining what a typical boiler service in their area involves is more useful than another generic tips list.

Make sure search engines can crawl and index your site

Check your robots.txt isn't blocking Google, and set up Search Console so you can see which pages are indexed. Google also says that, in addition to the technical requirements for Search, a site "must be included in Search generative AI features in Search Console to be eligible for display in generative AI features on Google Search". That control is under Settings > Search generative AI; Include is "the default control for all properties" (Search Console Help). If you want to appear in ChatGPT search, don't block OAI-SearchBot either. Our post on ChatGPT SEO walks through the check.

Keep your business details accurate and the same everywhere

Google says AI responses can include information about local businesses, and that Business Profile can help your services show in "both AI responses and other Google Search results". Use our Google Business Profile checklist to tidy yours. If you'd like help with maps and listings, see our local SEO service, or our page on SEO for Hampshire businesses if you're local to us.

Earn real mentions and reviews

Ask happy customers for honest reviews and get listed where your customers actually look. Never pay for fake reviews or mentions. Active social profiles also help people find and check you before they get in touch; if you don't have time for them, that's what our social media management is for.

How to tell if you're showing up in AI answers

Use Search Console. Google says the Generative AI performance report shows how your content performs in generative AI features on Google Search and Discover. Clicks from AI Overviews and AI Mode are also counted in the normal Performance report, under the "Web" search type.

You can spot-check by typing your customers' questions into an AI tool and noting who gets cited. Treat that as a snapshot, though, not proof: answers change from one day and one person to the next. And be careful with tools that promise more. Google says "No third-party tool has access to our internal ranking or AI systems".

Do you need someone to do AEO for you?

Often, no. Many owners can do the basics in this guide themselves: answer real questions, check indexing, keep business details right, and earn genuine reviews.

Getting help makes sense when you don't have the time, or when your site has technical problems you can't fix yourself. That's where our AI SEO services come in. One honest note: nobody can guarantee your business will be mentioned in an AI answer, and we don't either.

FAQs

What does AEO stand for?

AEO stands for answer engine optimisation: making your pages easy for AI answer tools such as Google AI Overviews, AI Mode and ChatGPT to understand, quote and link to. In UK customs, AEO also means Authorised Economic Operator, a status for businesses in the international supply chain.

What's the difference between AEO and SEO?

For Google, there isn't much of one. Google's guide says optimising for generative AI search "is optimizing for the search experience, and thus still SEO". The basics are the same. What changes is where you might appear (inside an AI answer) and which Search Console report you check.

What's the difference between AEO and GEO?

GEO stands for generative engine optimisation. Both are loose labels for getting content used in AI-written answers, and people often use them interchangeably. Google defines both terms together and says that, from its side, both are still SEO.

Is AEO replacing SEO?

No. Google says the best practices for SEO "continue to be relevant" because its AI features are rooted in its core Search ranking and quality systems. AEO describes where your content might appear, not a replacement for the work.

Do I need an llms.txt file or special schema for AEO?

Not for Google Search. Google says you don't need llms.txt or other AI text files, as Google Search doesn't use them, and there's "no special schema.org markup you need to add". Structured data is still worth keeping for rich results.

Can anyone guarantee my business will appear in AI answers?

No. AI tools choose their sources with their own systems, and Google says indexing and serving aren't guaranteed even when a page meets every requirement. Be wary of anyone who promises a set number of mentions or citations.

How can I see if my site appears in AI Overviews?

Use Search Console. Google points site owners to its Generative AI performance report, and clicks from AI Overviews and AI Mode also appear in the standard Performance report under the "Web" search type.

Your next step

This week, check three things: that your key pages are indexed in Search Console, that your business details match everywhere, and that your site answers your customers' top three questions clearly. If you came here asking "what is AEO?", that's the practical answer for a small business.

Not sure whether AI answer tools can read your site? Send us your URL and we'll tell you what we'd check first. Or see our plans and prices.