Google Updates Its Control What You Share Doc With the Search Generative AI Control

Google quietly reorganized one of its most useful help pages in October 2026. The guide that explains how to keep content out of Search, or limit what Google shows from it, now also points site owners to the Search generative AI control in Search Console.

No new opt-out launched on the day of the edit. What changed is that the controls for snippets, indexing and AI features now sit together in one place, which makes it far easier to pick the right one without mixing up a robots.txt rule with a noindex tag or an AI setting.

Here is what the page now says, how the generative AI control fits in, and how to choose the right control for each situation. If you need a refresher on the AI side first, our Google AI Overview SEO guide is a good place to start.

TL;DR

• When: Google updated the page on October 21, 2026, according to the Search Central documentation changelog.
• What: The “Control what you share with Google Search” guide now lists existing options such as the robots meta tag, data-nosnippet, the X-Robots-Tag header, and the Search generative AI control in Search Console.
• Who is affected: Anyone who manages what Google can index or show from a site, including publishers deciding whether to stay in AI Overviews and AI Mode.
• What changed in practice: No new control was launched. Google consolidated controls that already existed and clarified that the page applies to Google Search.
• What to do: Audit which control you use for each goal (keep out of the index, limit snippets, hide text, opt out of generative AI features) and make sure you are not using the wrong one.

What Is the “Control What You Share” Documentation?

The Control what you share with Google Search page sits in the Crawling and indexing section of Google Search Central. It is the overview page Google points people to when they want to keep content out of Search or change how it appears there.

The page gives three reasons a site owner might want this kind of control:

• Restricting data: keeping some content visible only to people who are already on your site.
• Hiding low-value content: for example, low-quality or spammy user-generated content that could hurt how the site performs in Search.
• Focusing crawling: mainly for very large sites, or sites with duplicate or less important pages.

It then works as a menu. Each method is listed with the content type it applies to and a link to the detailed documentation.

When Did Google Update It?

The entry in Google’s Latest documentation updates changelog is dated October 21, 2026. Its title is “Updated the control what you share with Google Search documentation.” The page itself also shows a last-updated date of October 21, 2026.

It was one of several Search Central documentation edits in the second half of October. Others included updated guidance on crawlable URL structures on October 23, 2026, and on preventing user-generated spam on October 26, 2026.

What Changed?

According to the changelog, Google made two changes:

1. It added existing options to the page, including the robots meta tag, data-nosnippet, X-Robots-Tag, and the Search generative AI control.
2. It clarified that the page is about Google Search specifically.

The changelog describes these as existing options. So nothing new rolled out on October 21. What changed is that Google’s main overview of content controls now treats the generative AI opt-out as one of the standard ways to control how your content appears in Search, alongside the robots rules SEOs have used for years.

Here is how the updated page lays out the methods:

The page also covers what to do when content is already showing up: it links to Google’s guide on removing information from Google Search. And it points to separate guidance on keeping redacted information out of Search, since metadata in published files can still appear in results.

A Quick Recap of the Search Generative AI Control

The generative AI control itself is not new. Google first described it on June 3, 2026, in a post on The Keyword titled “New opportunities, control and insights for website owners” by Mrinalini Loew, General Manager, Google Search Ecosystem. It started as a test with a subset of sites in the UK, and that post was later updated on August 31, 2026.

Per Google’s post, the control lets site owners choose whether their site appears in, and helps ground answers in, AI Overviews, AI Mode, and AI Overviews in Discover. Google was direct about the cost of opting out:

“Sites that opt out will not receive traffic or impressions from our generative AI features.”

Google, The Keyword

Google also said the setting “will not be used as a ranking signal for search results outside of these generative AI Search features,” according to the same post. In other words, opting out is meant to affect only AI features, not your regular blue-link rankings.

The control sits in Search Console as a property-level setting. Search Engine Journal reported on August 31, 2026 that the control and the generative AI performance reports were rolled out to all sites worldwide that day. The reports show impressions from AI Overviews, AI Mode, and generative AI features in Discover. Google introduced them in a Search Central blog post in June 2026.

Why This Documentation Change Matters

A documentation edit that adds existing options can look minor. We think it is worth paying attention to for three reasons.

The AI opt-out is now part of the standard toolkit. Until this edit, the generative AI control lived mainly in Search Console help content and announcement posts. Listing it on the core Search Central page next to noindex and robots.txt makes it part of the normal decision tree for content controls. Developers, legal teams, and clients who start from Google’s official docs will now see it there.

The scope is clearer. Google clarified that this page applies to Google Search. The page does cover a separate opt-out for properties like Google Shopping and Google Hotels, but the main controls are framed around Search. That helps separate Search controls from other Google systems. For example, the Keyword post presented Google-Extended as an earlier, separate tool, and Search Engine Journal reported that the Search generative AI control does not affect AI training, which Google-Extended handles.

It shows the difference between site-wide and granular controls. The updated table marks the generative AI control as site-wide. The robots meta tag, data-nosnippet, and X-Robots-Tag work at the page or text level. If you only want to limit how certain pages or passages are shown, the robots meta tag documentation is where to look. The Search Console setting is the blunt option for the whole property.

Who Is Affected?

Nobody’s site behaves differently because of this edit. The controls worked the same way before October 21. But the page is useful for a few groups:

• Publishers weighing AI features: news, recipe, and reference sites deciding whether AI Overviews and AI Mode visibility is worth keeping.
• Technical SEOs and developers: anyone who implements noindex, robots.txt, or header-based rules and needs one official reference to share with a team.
• Sites with user-generated content: the page explicitly lists low-quality user content as a reason to hide pages, which ties in with Google’s user-generated spam guidance updated on October 26, 2026.
• Ecommerce and travel sites: the page includes the opt-out for specific Google properties such as Shopping, Hotels, and vacation rentals.

What This Means for SEOs

The main takeaway is about choosing the right tool. We still see sites use robots.txt when they actually want a page out of the index, or add noindex when they only wanted to limit a snippet. The updated page makes the differences easier to explain:

• Out of Search entirely: remove the content, password-protect it, or use noindex. Google notes that noindex content can still be linked to and visited directly.
• Images and video out of Search: robots.txt disallow rules, because Google only indexes media Googlebot is allowed to crawl.
• Change how a page or passage is shown: robots meta tag rules, data-nosnippet, or X-Robots-Tag.
• Out of AI Overviews, AI Mode, and AI Overviews in Discover for the whole site: the Search generative AI control in Search Console.

For most sites, opting out of generative AI features is a business decision, not a technical one. Google has said opted-out sites get no traffic or impressions from those features. Before anyone changes the setting, look at the generative AI performance reports in Search Console to see how many impressions your site gets from AI Overviews, AI Mode, and Discover AI features. If you are still building AI visibility, our guides on checking whether your website appears in AI Overviews and finding pages cited by Gemini can help you measure what you would be giving up.

What You Should Do Now

1. Read the updated page once. Share the official guide with developers and stakeholders so everyone uses the same reference.
2. Map each goal to one control. List the pages or sections you want hidden or limited and confirm each uses the right method from the table above.
3. Check your Search Console settings. Confirm whether anyone on your team has changed the Search generative AI control, and document why.
4. Review AI impressions before deciding. Use the generative AI performance reports to understand your current exposure in AI features before opting out.
5. Clean up user-generated content. If you run forums, comments, or profile pages, read Google’s updated user-generated spam prevention guide alongside this page.
6. Keep training and Search controls separate. Do not assume the Search Console setting changes how your content is used for AI training. That is handled by a different mechanism.

Before you change any settings, check how your pages already perform in Google’s AI features with the Search generative AI performance reports in Search Console. If you plan to block crawlers, test the rules first with one of these robots.txt tester tools, and read our guide to robots.txt for AI agents. If pages start dropping out of the index after a change, our fix guide for pages suddenly not indexed in Search Console will help you trace the cause.

FAQs

Did Google launch a new opt-out on October 21, 2026?

No. The changelog says Google added existing options to the page. The Search generative AI control was announced in June 2026 and, according to Search Engine Journal, rolled out globally on August 31, 2026.

Which AI features does the Search generative AI control cover?

Google’s announcement lists AI Overviews, AI Mode, and AI Overviews in Discover. The updated Search Central page names AI Overviews and AI Mode as examples of generative AI features on Google Search.

Will opting out of AI features hurt my regular rankings?

Google says the setting will not be used as a ranking signal for results outside its generative AI features. You will, however, lose traffic and impressions from those AI features.

Is the generative AI control page-level or site-wide?

The updated documentation lists it as site-wide. For page-level or text-level control over how content is presented, Google points to the robots meta tag, data-nosnippet, and X-Robots-Tag.

Does blocking a page in robots.txt keep it out of Google?

The updated page lists robots.txt disallow rules as the method for images and video. For web pages, it points to noindex, password protection, or removing the content. A noindex rule only works if Google can crawl the page and see it.

Does the Search Console setting stop Google from training AI on my content?

According to Search Engine Journal’s report, the Search generative AI control does not affect AI training, which is controlled separately through Google-Extended.

Final Thoughts

This is a housekeeping update, but a useful one. Google now has a single official page that lists every way to control what appears in Search, including the AI opt-out. Use it to check that each section of your site uses the right control, and treat the generative AI setting as a business decision you make with data from your Search Console reports, not a quick toggle.