AI Overview

What is an AI Overview built from?

Ordinary Google Search crawling, and the query fan-out technique on top of it. Google describes AI Overviews as helping people “get to the gist of a complicated topic or question more quickly”, and describes the retrieval behind them as “issuing multiple related searches across subtopics and data sources”. The pages that end up cited are the ones that matched one of those generated searches.

Because it runs on Search, everything you already do for Google applies: an AI Overview cannot cite a page that is not indexed or not snippet-eligible. That is the one respect in which this surface is easier than the assistants, which each keep their own index and publish nothing about it. It is also the reason an AI Overview problem is usually an indexing problem wearing a new hat, and worth diagnosing in that order.

How is an AI Overview different from AI Mode?

An AI Overview is a summary sitting on top of a results page you can still scroll. AI Mode is a separate conversational surface where the answer is the page. Google states the two “may use different models and techniques, so the set of responses and links they show will vary”, which is the polite way of saying that being cited in one predicts very little about the other.

Reporting is where this bites. Since June 2026 Search Console has reported impressions from generative AI features, but it counts AI Overviews and AI Mode together, with no query breakdown and no clicks, so the surface that changed the most still has the least measurement behind it. Tracking a keyword set for Overview presence and citations, which RankX AI’s AI Overview tracker does inside rank tracking, is how to see the half Google does not report.

Can you opt out of AI Overviews?

Yes, since 31 August 2026. Search Console’s Search generative AI setting, under Settings, removes a site from AI Overviews and AI Mode and leaves its ordinary results untouched; it is on by default. For single pages, nosnippet, max-snippet and noindex still limit what an AI Overview may use, and each one also changes the ordinary result.

Google-Extended does not do it: Google-Extended governs whether Google may train Gemini models on your content, including the models behind AI Overviews and AI Mode, and never inclusion. The setting works per Search Console property, so a URL-prefix property can exclude one section of a site.

Are you cited on the keywords you care about?

Related terms

• Google AI ModeGoogle AI Mode is a conversational search surface where a written answer replaces the ranked results page rather than sitting above it.
• Google-ExtendedGoogle-Extended is a robots.txt token, not a crawler.
• Query Fan-OutQuery fan-out is Google’s own term for how AI Overviews and AI Mode answer a question: the engine breaks the question into subtopics and issues many searches at once, then writes one answer from the results.
• Answer EngineAn answer engine is a search product that returns a written answer rather than a ranked list of links, citing a handful of sources inside it.