How to keep your content out of AI Overviews: every real control and what it costs

As of July 2026 there are exactly two ways to keep content out of Google’s AI Overviews without leaving Search: the new Search Console “Search generative AI” exclude control (UK subset only, for now) and the nosnippet / max-snippet:0 preview controls. Google-Extended does not do it. Every option has a documented price — and the stakes are real: DMG Media told the CMA its desktop CTR fell from 25.2% to 2.8% when an AI Overview appears (CMA submission).

What controls does Google officially document for AI features?

Google documents exactly four content controls for AI features — nosnippet, data-nosnippet, max-snippet, and noindex — plus one access control: robots.txt directives for Googlebot. The AI features doc says it plainly: “To limit the information shown from your pages in Search, use nosnippet, data-nosnippet, max-snippet, or noindex controls.”

There is no AI-only Google crawler to block. Same doc: “AI is built into Search and integral to how Search functions, which is why robots.txt directives for Googlebot is the control for site owners to manage access to how their sites are crawled for Search.” Block Googlebot and you leave all of Search, not just the AI parts.

Telling detail: that doc (last updated December 10, 2025) still doesn’t mention the Search Console control announced June 3, 2026 — Google’s docs lag Google’s announcements. The full ladder:

How does the new Search Console “Search generative AI” control work?

Announced June 3, 2026, it’s the first switch that removes a site from Google’s AI answers while leaving the rest of Search untouched. The help doc locates it at “Settings > Search generative AI”; Brodie Clark’s live preview showed “Settings > AI controls > Search generative AI” — expect the label to wobble. Owner permission is required (per Clark’s preview); the help doc confirms Google acts on it from June 17, 2026.

Include is the default for every property. Exclude means: “Your site’s content is prevented from being visible to users in Search generative AI features, including being linked to within these features and helping with grounding AI responses in these features.” Covered surfaces: AI Overviews, AI Mode, and generative AI features in Google Discover.

Latency is documented: “Content will be excluded within 1-2 days after the control goes live, but some content may take longer to be excluded due to caching and propagation across Google systems.” The accompanying impressions-only report has its own breakdown.

What the Search Console toggle does not cover

It is a Search-features switch, not an AI switch. The help doc is explicit: “This control doesn’t affect AI training; to limit training of the models used to generate responses in Search generative AI features, use Google-Extended.” And per 9to5Google: “This setting only applies to those Google Search products, with the Gemini app excluded.”

Google’s announcement also promises: “This control will not be used as a ranking signal for search results outside of these generative AI Search features.” That’s Google’s own assertion — nobody outside can audit it. Google's claim Rollout: Google is “beginning to roll these features out to a subset of website owners in the UK” before going global.

Does blocking Google-Extended remove my site from AI Overviews?

No — the single most common misconception, and Google’s own docs refute it. Per the crawler documentation, Google-Extended governs Gemini-model training and grounding (Gemini Apps, Vertex AI) and “does not impact a site’s inclusion in Google Search nor is it used as a ranking signal in Google Search.”

AI Overviews and AI Mode are Search features crawled by regular Googlebot — disallowing Google-Extended and calling yourself opted out achieves nothing for AI Overviews.

Crawler-level blocking is a different lever for other engines’ bots like ChatGPT-User — see our Cloudflare AI-crawler post — but Google’s AI rides the same crawler as Search.

Do nosnippet and max-snippet keep content out of AI Overviews?

Yes — the robots meta tag spec says nosnippet “will also prevent the content from being used as a direct input for AI Overviews and AI Mode.” The cost sits in the same definition: “Do not show a text snippet or video preview in the search results for this page.” Your regular blue-link snippet dies with it.

max-snippet is the partial version: it “will also limit how much of the content may be used as a direct input for AI Overviews and AI Mode.” The two special values are in the table above.

data-nosnippet is the granular option — Google lists it among the four AI-features controls, though the spec’s explicit “AI Overviews and AI Mode” sentence sits under nosnippet and max-snippet only. noindex is the nuclear tier: “Do not show this page, media, or resource in search results.” And none of this is instant — Google’s own docs carry a troubleshooting flow for preview controls that haven’t taken effect yet.

Why would a publisher want out?

Because publishers’ own data ties AI Overviews to collapsing click-through rates. DMG Media told the CMA in a consultation submission that its click-through rate fell from 25.2% on regular desktop searches to 2.8% when a user sees an AI Overview — an 89% drop, 87% on mobile (self-reported; via The Telegraph, August 2025). Self-reported

Then the lawsuit: Penske Media (Rolling Stone, Variety, Billboard) sued Google on September 12, 2025 in the U.S. District Court for the District of Columbia, an antitrust suit including unlawful reciprocal-dealing claims under the Sherman Act. Per the complaint, affiliate revenue fell more than a third by end-2024, and roughly 20% of Google searches linking to PMC sites carry AI Overviews (Search Engine Land). Before June 2026 there was no way to be in Search but out of AI Overviews — the great decoupling, litigated.

What do you lose by opting out?

Visibility — being cited is measurably better than not, even in a degraded market. Seer Interactive’s study (3,119 queries, 42 organizations, 25.1M organic impressions, June 2024–September 2025) puts three numbers on informational queries in Q3 2025:

Cited means roughly 35% higher organic CTR than uncited (paid: 7.89% vs 4.14%, +91%) — yet even cited pages sit far below the no-AIO baseline. Opting out volunteers you for the 0.52% row.

The nosnippet route has its own price tag: Google’s 2019 EU-copyright experiment found that showing only publication title, URL and video thumbnails “led to a 45 percent reduction in traffic to news publishers” — Google’s own number, from a lobbying campaign, news-specific and pre-AI, but the only quantified estimate of losing snippets. And excluding doesn’t kill the AI answer. The help doc: “Content from other sites will still be available in those features, and it may appear similar to yours.”

Why does this toggle exist now?

Because a regulator forced it. The UK’s CMA, which designated Google with strategic market status in general search in October 2025, imposed a legally binding conduct requirement on June 3, 2026 — a “world-first requirement”, per CEO Sarah Cardell — and Google shipped the toggle the same day (TechCrunch).

The order goes beyond the toggle: publishers “will now have effective tools to prevent their content being used to power AI features in search, such as AI Overviews”, plus a “fine-tuning” opt-out and attribution “using clear links” — nine months to implement it all. The fine-tuning opt-out is a future obligation — today’s toggle doesn’t do training.

What has Google not told us?

Plenty — and I’d rather flag uncertainty than fake precision. Open questions as of July 2, 2026:

• Persistence. Nothing says whether already-generated or cached AI Overviews citing you linger past the 1-2-day window.
• Rollout. “A subset of website owners in the UK” is undefined; no global date.
• Granularity. Only property-level exclusion is documented — no per-URL control.
• The ranking promise. No independent verification — and no John Mueller or Search Liaison statements on any of this.
• Search Labs. The report excludes Labs experiment data; whether the toggle touches Labs surfaces is undocumented.

One first-hand datapoint: on July 2, 2026 our GSC API query with the searchAppearance dimension returned zero rows — a non-enrolled property exposes no AI-surface breakdown at all.

What is hzsignal doing?

We’re opting in everywhere — this site exists to be cited. 91% of our query-attributed GSC impressions (126 of 138) came from the AI Overviews / AI Mode query cluster (our data — one site’s experience, not a universal law). Excluding ourselves would delete the experiment. But that’s our math, not yours: a click-dependent publisher staring at DMG-style CTR numbers faces a genuinely hard trade — and finally has a real switch instead of Google-Extended folklore.

Frequently asked questions

Sources

• Google Search Central — Robots meta tag, data-nosnippet, and X-Robots-Tag specifications
• Google Search Central — AI features and your website
• Google Search Central — Google’s common crawlers (Google-Extended)
• Google Search Console Help — Search generative AI control
• Google (The Keyword) — New controls for website owners
• GOV.UK — CMA secures fairer deal for publishers
• TechCrunch — Publishers will be able to opt out of AI Search
• Brodie Clark — Live preview: Google Search Console AI report and controls
• Seer Interactive — AIO impact on Google CTR (September 2025 update)
• DMG Media — CMA consultation submission (PDF)
• Google (The Keyword, 2019) — Now is the time to fix the EU Copyright Directive
• TechCrunch — Rolling Stone owner Penske Media sues Google over AI summaries
• Search Engine Land — Penske Media sues Google, says AI Overviews hurt revenue, traffic
• 9to5Google — Google will let sites opt out of AI Mode and AI Overviews