Opting out of AI Overviews and AI Mode: is it worth it?

When people talk about opting out of AI Overviews, they usually mean this setting. It’s under Settings › Search generative AI in Search Console and has been available to all websites worldwide since August 31, 2026. By default, your site is included (Search Console Help on the Search generative AI control (external site)). Our article AI Overviews and AI Mode explains how Google chooses its sources. How AI systems tie answers to current sources is covered in our article on AI grounding. Our guide to generative engine optimization (GEO) shows where this decision fits in your work on AI visibility.

How fast it works: It generally takes a few days. Google says content is excluded within one to two days after the control goes live, though caching and propagation across its systems can delay some content. You can change the control at any time. Google doesn’t say how long it takes for your content to return.

Google only: The control doesn’t apply to ChatGPT, Perplexity or other providers. You manage their crawlers in robots.txt, as our article What should you allow in robots.txt? shows.

The controls differ mainly in what they cost you along the way. The rules for individual pages are in Google’s specification for the robots meta tag (external site), and the numbers in the last column refer to the source list.

Excluding a single directory: A child property can differ from its parent. Create a URL-prefix property for the directory, meaning a property only for URLs that start with that prefix, such as https://example.com/guides/, and set it to Exclude. Owners of that property can do this. Owners of the top-level domain property then see a notification. This lets you test one section without affecting your whole website.

Direct input: For nosnippet and max-snippet, Google specifically says “direct input.” The documentation doesn’t say whether Google uses pages with these rules for answers in some other way. The max-snippet limit also doesn’t apply if you’ve granted permission for your content separately, for example through in-page structured data or a license agreement with Google. These rules don’t guarantee that a page will never appear in an answer.

When a search shows an AI Overview, fewer people click the first result. For keywords in Germany with an AI Overview, SISTRIX puts the figure at 11%, compared with an average of more than 27% across all results pages. In August 2025, Google described total organic clicks as relatively stable (Google’s blog post on clicks (external site)). So how much an individual website loses is disputed. If you exclude your site, the AI Overview can still appear and cite other sources. Excluding doesn’t win back those clicks, and your link in the answer is gone.

Source: SISTRIX (external site), Feb 25, 2026 · vendor study · over 100 million keywords in Germany

Our page AI search in Germany: key statistics collects more figures. The table gives our assessment of each case. It isn’t a Google recommendation, and we have no measurements from opting out ourselves.

You can reverse an opt-out, but you can’t go back and take a measurement you missed. So save the data from the next section before you turn anything off.

1. Read your impressions: The generative AI performance report (external site) shows how often links to your site appeared in AI Overviews and AI Mode. You can break it down by page, country, date and device, but it doesn’t show queries. Discover has its own report.
2. Work out the share: Divide your AI impressions by all impressions in the regular Performance report. That shows how much of your visibility comes from the AI features at all. Search Console counts clicks from these features there, under the Web search type (Search Console Help on impressions and position (external site)).
3. Estimate the clicks: Multiply your AI impressions by an assumed click-through rate. Solid figures are scarce. An SEO consultant estimated about 0.9% for one website after opting out, based on total clicks before and after the test. In the US in March 2025, Pew counted a click on a link in the summary in 1% of visits to pages with an AI summary. The two figures measure different things and don’t transfer to your website. At 1,000 impressions a month, 0.9% would work out to about 9 clicks.
4. Factor in regular clicks: In the same test, clicks on the regular results also fell after opting out. AI impressions made up about 8% of all impressions, and AI Overviews kept appearing on those results pages. This isn’t proof for every website: it’s one site, and new posts and brand searches played a part during the same period.
5. Put a value on each click: Count how many inquiries the affected pages have brought in so far. Our how-to How to track AI traffic beyond GA4 shows how to capture that without cookies. Google says in its documentation on AI features (external site) that clicks from results pages with AI Overviews are higher quality because visitors stay longer. It gives no figures there.
6. Test first: Exclude one directory through its own URL-prefix property and compare it with a similar directory that stays included. Beforehand, save the last 12 weeks of data and note any updates or relaunches during the test period. The 12 weeks are our recommendation, not a Google requirement.

Source: Search Engine Roundtable (external site), Oct 30, 2026 · single-site test

Source: Pew Research Center (external site), Jul 22, 2025 · 900 US adults, March 2025

For what the search engines’ reports show overall, see What do the Google and Bing reports show? in our measurement how-to.

In Search Console: Open the property, go to Settings › Search generative AI and choose one of three options: include, exclude or inherit the control from the parent property. By default, child properties follow the closest parent that has set its own control; otherwise, they follow the top-level domain property.

<!-- Whole page: no snippet, no direct input for AI features -->
<meta name="robots" content="nosnippet">

<!-- Whole page: 50 characters at most -->
<meta name="robots" content="max-snippet:50">

<!-- This passage only; allowed on div, span and section -->
<div data-nosnippet>
<p>Price list, as of Oct 1, 2026</p>
</div>

# In the HTTP response, for example for PDF files
X-Robots-Tag: nosnippet

Common mistakes:

• robots.txt blocks the page: Google reads these rules when it crawls. If the page is blocked, Google sees neither noindex nor nosnippet.
• data-nosnippet on the wrong element: Google only honors the attribute on div, span and section. It has no effect on a p or li. If a div isn’t closed, the attribute covers everything after it.
• Setting the attribute with JavaScript: Google advises against adding it to or removing it from existing elements, because rendering isn’t guaranteed.
• Forgetting structured data: It stays usable, even inside a data-nosnippet element. The exception is article descriptions, which max-snippet limits. Remove from the data anything that shouldn’t appear.
• Conflicting rules: The more restrictive rule applies. If max-snippet:50 sits next to nosnippet, nosnippet wins.
• Confusing the tag names: name="robots" applies to all crawlers, name="googlebot" only to Google. The second helps if Bing should keep showing snippets.
• Checking too soon: It can take days or months for Google to recrawl a page. The HTML in the URL Inspection tool (external site) shows whether Googlebot sees your rule, and you can also request a recrawl there.

The CMA’s publisher conduct requirement (external site) includes three points that matter for this decision:

• Controls: Website owners must be able to withhold their content from being used to ground AI responses, at directory and page level.
• Metrics: Google must show impressions, clicks and click-through rate for the AI features, aggregated across features such as AI Overviews and AI Mode.
• No penalties: Google may not penalize website owners, for example by downranking them in the rest of Search.

According to Google’s announcement of June 3, 2026 (external site), today’s control began as a test with a subset of website owners in the UK. It has been available worldwide since August 31, 2026. Whether the new controls and click metrics will also roll out worldwide is open. In the EU, an antitrust investigation by the European Commission is also underway; our article covers it under What’s specific to Germany and the EU?

If you’re unsure today, waiting costs you little: you can change the control at any time, and better click data could make the calculation easier.