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AI Overviews: how Google chooses the pages it links
AI Overviews are AI-generated summaries Google shows above its results for some searches, linking the pages they draw on. A page becomes one of those links the way it reaches ordinary results: Google says "There are no additional requirements to appear in AI Overviews." It is a feature the AI SEO niche is built around.
What AI Overviews are
AI Overviews summarise a topic and point to sources. Google's page on AI features and your website, last updated on and checked on , describes them as helping "people get to the gist of a complicated topic or question more quickly," providing "a jumping off point to explore links to learn more."
They do not appear on every search. The same page says that "AI Overviews are only shown when our systems determine that it is additive to classic Search, and as such, often don't trigger." AI Mode, a separate experience for longer, exploratory questions, works on the same principles but "may use different models and techniques, so the set of responses and links they show will vary."
How the linked pages are chosen
Google builds the answer from its index, and it may search more than once. Both features "may use a "query fan-out" technique," which Google describes as issuing multiple related searches across subtopics and data sources to develop a response. That lets them "display a wider and more diverse set of helpful links" than a single search would.
That has one practical consequence. A page can be linked for a question it does not target directly, because one of the related searches matched it. Covering a subject well, rather than one phrasing of it, is what fan-out rewards.
What makes a page eligible
The requirements are the ones for Google Search itself. Google states: "To be eligible to be shown as a supporting link in AI Overviews or AI Mode, a page must be indexed and eligible to be shown in Google Search with a snippet." It adds, as it does for all of Search, that meeting the requirements "doesn't mean that Google will crawl, index, or serve its content."
Its list of practices that continue to matter is the ordinary one: crawling allowed, content findable through internal links, a good page experience, important content in text, good images and video where they help, and structured data that "matches the visible text on the page."
What Google says you do not need
Google is explicit about what AI Overviews do not require. On its AI features page: "You don't need to create new machine readable files, AI text files, or markup to appear in these features. There's also no special schema.org structured data that you need to add."
Its guide to generative AI features, last updated on , goes further and names specific ideas you can ignore for Google Search: an llms.txt file, "chunking" content into small pieces, rewriting text just for AI systems, and chasing inauthentic mentions. It describes optimizing for these features as "still SEO", which is the same conclusion reached from the other side under GEO.
Where structured data fits
Structured data is not a requirement for AI Overviews, but it is not irrelevant either. Google's guide says it "isn't required for generative AI search," and in the same sentence advises continuing to use it "as part of your overall SEO strategy, as it helps with being eligible for rich results." The rule that applies everywhere applies here: markup has to match what the reader sees.
What markup can and cannot do for a result's appearance is covered under rich results; what a page's structured data contains is covered on its own page.
How to see whether a page appears
Google's AI features page says sites appearing in AI Overviews and AI Mode are counted in Search Console's overall search traffic, in the Performance report under the "Web" search type. Its newer guide also points to a Generative AI performance report for content in generative AI features.
Neither shows the text of the overview or which sentence came from which page. For that, the only method is to search the questions your page answers and read what appears, noting the date, since overviews change as the index does.
What this means for a page
Read together, Google's statements describe a short list. Make sure the page can be crawled and indexed and is allowed a snippet. Answer the questions it covers clearly and early, because a related search from the fan-out may land on any section. Keep facts in text and keep structured data in step with what the reader sees. Beyond that, the page competes as it does in ordinary results, and the decision to link it stays with Google, query by query.
Limiting what appears
Google treats AI Overviews as part of Search, so the controls are the search controls: crawling rules for Googlebot, and the directives that limit what is shown from a page in results. How those directives work, and how crawlers and bots receive pages, is covered by BotBridge; this site does not cover them.
FAQ
How do I get my page into AI Overviews?
Through the same route as Google's results. Google says a page must be indexed and eligible to show with a snippet, and that there are "no additional requirements" or special optimizations. Covering a subject well helps, because AI Overviews may run several related searches and link pages matched by any of them. Nothing guarantees inclusion.
Can I keep my pages out of AI Overviews?
Google treats AI Overviews as part of Search, so the controls are the search ones: crawling rules for Googlebot and the directives that limit what is shown from a page. Those directives also affect ordinary results. They are covered by BotBridge, which documents how pages reach crawlers.
Do AI Overviews use structured data?
Google says structured data "isn't required for generative AI search" and that there is no special schema.org markup to add. It still recommends structured data for rich results, and asks that markup match the visible text. So markup is neither a requirement for AI Overviews nor a reason to remove it.
Does llms.txt help with AI Overviews?
No. Google's guide to generative AI features says Google Search does not use llms.txt files, and that keeping one "will neither harm nor help" a site's visibility or rankings in Google Search. It is fine to keep one for other systems that read it, but not for AI Overviews.