AI Overviews SEO: What Google Actually Says About Visibility

AI Overviews SEO is sold as a new discipline: a separate offer, a separate landing page, a separate budget, often under the labels GEO or AEO. Google’s own documentation says something else — that from the search engine’s point of view this is still SEO. What follows is source material only: quotations from Google, each with the date its document was last updated, and a clear line between what Google actually wrote and what the market added on top.

Is optimising for AI a separate discipline?

No — from Google Search’s point of view it is still SEO. Google’s guide to optimising for generative AI search (developers.google.com/search/docs/fundamentals/ai-optimization-guide, last updated 10 July 2026) closes the question in one sentence: “From Google Search’s perspective, optimizing for generative AI search is optimizing for the search experience, and thus still SEO.”

The same document explains why: “The best practices for SEO continue to be relevant because our generative AI features on Google Search are rooted in our core Search ranking and quality systems.” In other words, there is no separate engine with separate rules sitting behind AI Overviews. It is the same one you influence through ordinary work on the site.

What exactly did Google write, and when

Four sentences from the guide to optimising for generative AI search (last updated 10 July 2026) settle most of the arguments currently being had about AI visibility:

• “You don’t need to create new machine readable files, AI text files, markup, or Markdown to appear in Google Search.”
• “There’s no requirement to break your content into tiny pieces for AI.”
• “You don’t need to write in a specific way just for generative AI search.”
• “Structured data isn’t required for generative AI search.”

A separate page about AI features in Search (developers.google.com/search/docs/appearance/ai-features, last updated 10 December 2025) adds: “There are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary.” There is one condition, and it has been the same for years: the page has to be indexed and eligible to be shown with a snippet.

Note what those five quotations have in common. Each one removes a requirement rather than adding one. The documentation is not describing a new checklist to work through — it is describing the absence of a checklist.

What the market added that Google does not require

The table below sets the claims that appear most often in “AI SEO” proposals against what Google’s documentation says about them.

None of this means each of those activities is harmful. It means none of them is a condition of appearing in Google’s AI features — and that is exactly how they tend to be sold.

The llms.txt file — what can honestly be said about it

Google Search does not use the llms.txt file, so its absence does not hurt your visibility in Google Search and adding it will not improve that visibility. That is everything the Google documentation supports, and deliberately less than the market claims in either direction. “The file is useless in general” would be a different claim, about systems outside Google Search, and the sources do not back it. If someone is selling it to you as a condition of visibility in Google, they are saying something the documentation does not confirm.

Apply the same caution to promises about systems other than Google Search, such as ChatGPT or Perplexity. Each of them sources content on its own terms, and outside Google’s documentation there is no equally unambiguous source to cite. A promise to “rank you in ChatGPT” has nothing behind it comparable to the quotations above.

If it is still SEO, what should you actually do

Start with the condition Google names outright: the page has to be indexed and eligible to be shown with a snippet. That means the work before any “AI optimisation” is thoroughly mundane — checking whether your pages are in the index at all, and whether they are being held back by noindex, by robots.txt or by a canonical error. That is the job of an SEO audit that shows what is blocking visibility, and it belongs at the start of the process rather than the end.

The second thing is specificity. Since you do not have to write in a special style for the models, what is left is what already worked: a clear answer to the reader’s question near the top, named entities, numbers with dates, no padding. The third is the technical layer, where loading speed and layout stability are described by Core Web Vitals: LCP, INP and CLS. If you serve a specific area, local SEO and where to start with it remains a separate subject in its own right. When you cannot tell which of those three areas your site’s problem sits in, describe the site to our team and we will come back with what is genuinely worth moving first.

How do you check whether your site appears in Google’s AI answers

Google Search Console is the tool for it. According to Google’s documentation, traffic from AI features is counted inside your site’s overall traffic and reported under the “Web” search type rather than in a separate channel — so do not go looking for a distinct “AI Overviews” line in your historical data.

In June 2026 Google announced performance reports for generative AI features, covering AI Overviews and AI Mode among others. The methodology is documented and worth knowing before you interpret the numbers: an entire AI Overview occupies one position in the search results, and every link inside that block is assigned the same position. A click on a link leading to an external page — in AI Overviews and in AI Mode alike — counts as a click.

The reports are rolling out in stages, starting with a subset of sites. If you do not see them on your property yet, that does not mean something is wrong with the site, and it does not mean anyone has to “unlock” them for you through a paid implementation.

What to ask an agency selling AI SEO

One question is enough to separate an offer grounded in documentation from an offer grounded in fashion.

The answer will tell you more than an entire portfolio. An agency that works from sources will point at the guide last updated 10 July 2026 and admit openly that most of its work is still SEO. A seller who cannot do that will keep returning to arguments without a citation — and at that point it helps to have the wider list of warning signs set out in the guide to vetting an SEO agency before you sign. The name of the service — GEO, AEO, “AI SEO” — says nothing about whether anyone can make your site more visible. What says something is whether they can show you where their recommendations come from.