For the first time, a website can leave Google's AI answers without leaving Google. A new Search Console control lets site owners exclude their content from AI Overviews, AI Mode, and the AI features in Discover while staying fully indexed and ranked in normal results, and Google has said the setting will not be used as a ranking signal. For most businesses the right answer is still no, at least not yet: opting out removes you from the fastest-growing surface in search while your competitors stay in it. But the decision deserves real numbers rather than instinct, and this piece walks through both the control and the data you should look at before touching it.
What the new control actually does
The setting lives in Search Console under Settings and Search generative AI. Switched on, it stops Google from using your pages to generate answers in three places: AI Overviews on the results page, AI Mode, and AI Overviews inside Discover. Your site continues to be crawled, indexed, and ranked normally, and it still appears in the Discover feed. Google has been explicit that the toggle is not a ranking signal, and that the Gemini app is out of scope: this applies only to Google's AI search products.
Two details matter for planning. The control currently works at the domain level, so you are opting out your whole property, and Google has indicated page-level controls are planned for March 2027. And it arrived because a regulator forced it: the UK Competition and Markets Authority issued a legally binding conduct requirement in June 2026, described as a world first, ordering Google to give publishers this choice. It launched UK-first on June 3, took effect June 17, and has been rolling out more widely since, with Google framing global availability as following the UK test.
Why the trade-off is harder than it looks
The case for opting out is simple: AI answers satisfy the query on the results page, so fewer people click through to the source. That is real. Ahrefs' comparison of 300,000 keywords found that where an AI Overview appears, the click-through rate for the top-ranking page falls from about 7.3% to 1.6%, a drop of up to 58%. A panel study submitted in August 2026, based on a month of browsing data from 900 US adults, found users clicked a source cited inside an AI Overview in only about 1% of the sessions where one appeared.
The case against is the scale of what you would be leaving. Google reports AI Overviews reach more than 2.5 billion monthly users and AI Mode has passed one billion, with AI Mode queries more than doubling each quarter since launch. Opting out does not make those users see ten blue links instead. It makes them see an AI answer assembled from everyone except you.
There is also a quieter cost that surfaced in August. Tracking data from NewzDash found Top Stories carousels rendering inside AI Overviews on trending US news results. If that pattern spreads, opting out of AI features could mean opting out of prominent placements that used to be plain search real estate. Google has said it plans to increase the number of links shown inside AI answers, which cuts the other way: the AI surface may become a better click source over time, not a worse one.
Who should consider opting out
A short list, honestly drawn.
News and reference publishers whose business is the visit itself, and who are negotiating licensing terms. The CMA's stated intent was to put publishers in a stronger position to negotiate with Google, and for a publisher whose content is being summarized at scale, the toggle is leverage as much as a setting.
Sites with a contractual or regulatory reason to control where their content is reproduced, where the visit is not the point but the control is.
Almost nobody else. If you sell a product or service, being named inside the answer is the visibility. A brand that opts out of Google's AI surfaces is not protected from AI; it is simply absent from one part of it while remaining present, uncontrolled, in ChatGPT, Perplexity, Claude, Copilot, and the Gemini app. Our breakdown of where AI gets its answers shows how little those other engines overlap with Google to begin with.
Measure before you decide
The good news is that Google shipped the measuring instrument in the same season as the off switch. The Generative AI performance report in Search Console shows how often your pages appear inside AI Overviews and AI Mode, by page, country, device, and date. We cover what it does and does not show in a separate piece, how to read the Generative AI report, but the short version is that it tells you presence, not clicks or whether you were named.
So the decision needs three numbers side by side: how often your pages appear in Google's AI features, what AI referral traffic those surfaces actually send, and what the answers say about you when they are generated. The first comes from Search Console. The second is a GA4 question, and worth reading our AI referral traffic analysis before drawing conclusions from small numbers. The third is the one no Google report gives you, and it is the one that decides whether opting out would cost you a recommendation or merely a citation. Diploria tracks AI Overviews and AI Mode as separate surfaces, stores the full answer each time, and records whether your brand was mentioned, how it was described, and which competitors were named instead. The free AI visibility check is the quickest way to see that baseline.
If your pages appear often in AI features, your brand is named favorably in the answers, and the referral traffic is small but converting, opting out would be self-harm. If your pages are summarized heavily, you are rarely named, and the surface sends nothing back, you have a genuine decision to make, and now the tools to make it.
How this fits with the other crawler controls
The toggle is the first control aimed specifically at Google's AI search features. It is different from Google-Extended, the robots.txt token that governs whether your content trains Gemini models, and different again from the Cloudflare Content Signal Policy, a robots.txt directive for expressing how AI systems may use your content. Each control covers a different consumer: training, search grounding, or agent access. Treat them as separate decisions. Diploria's AI Access tool inspects your live robots policy per AI agent and shows which bots can actually reach which parts of your site, which is the sensible starting point before layering another switch on top.