Answer first: A UK or Isle of Man firm can choose, in Google Search Console, whether its links and content may appear in Google’s Search generative AI features. Google’s help page says that, as of 31 August 2026, this control has been rolled out to all websites worldwide. The default is to include the site. Excluding it keeps your pages out of AI Overviews, AI Mode, and generative AI features in Google Discover. Ordinary Google Search results stay available. The same switch does not stop AI training, and it does not place you in an answer.

Quick answer

Three different Google controls get mixed up. They are not substitutes:

  • Search generative AI control, under Settings, then Search generative AI, in Search Console. Include or exclude the property’s links and content from AI Overviews, AI Mode, and generative AI features in Discover. Google says this is not a ranking signal for the rest of Search.
  • Page preview rules on a URL: nosnippet, data-nosnippet, max-snippet, and noindex. Google’s AI features guide still lists these as the way to limit what Search can show from a page. nosnippet also removes the ordinary text snippet.
  • Google-Extended in robots.txt. Google’s common crawlers page says this token manages use for training future Gemini models and for grounding in Gemini Apps and Grounding with Google Search on Vertex AI. It does not change inclusion in Google Search.

ChatGPT, Perplexity, Bing, Copilot, and Apple use their own tokens. Those are covered in the AI search citations guide and the Perplexity, Bing, Copilot and Apple guide. This article is only the Google Search control.

None of these settings is a citation. Google says a page that meets the technical requirements may still not be crawled, indexed, or shown. This article records what Google’s pages said for a reader on 13 October 2026. Recheck them before you change a live property.

What the Search Console control changes

Open the property in Search Console and go to Settings, then Search generative AI. Google’s Search generative AI control help page names three choices:

  • Include means your content can appear in those generative AI features, including as links and as material that helps ground the responses. The property can receive impressions and traffic from the features. Google says this is the default for all properties.
  • Exclude means your links and content are kept out of those features, including as links and as grounding for the responses. Google says you will not receive traffic or impressions from the features.
  • Inherit means the property follows its parent. A change on that parent applies here too. Google says this is the default when the property has a parent, and that you can override it.

The list of features on that page is AI Overviews, AI Mode, and generative AI features in Google Discover. Google says it expects to update the list. Excluding the property is therefore wider than “turn off AI Overviews on the brand query”. Discover is on the same switch.

Google says that after you change the control, exclusion generally takes a few days. It also says content is excluded within one to two days after the control goes live, and that caching and propagation can make some of it take longer. That is a timing note, not a promise that a particular overview will change on a particular morning.

To see the effect, the same help page points owners to the Generative AI performance report. The AI features guide still says appearances in AI Overviews and AI Mode are included in the Performance report for the Web search type. Use those reports to read your own property. Do not treat a single chat screenshot as the measurement.

What excluding leaves in place

Google is explicit about the boundary, and it is the reason this switch is different from noindex:

  • The control is not used as a ranking or inclusion signal for other parts of Search. Blue-link results are a separate question.
  • It does not override choices you have made in other Google products. The help page names Merchant Center and Google Ads.
  • Content from the site may still be used to power Google Search as a whole, including helping systems understand language on the web and in queries.
  • It does not affect AI training. To limit training of the models used for responses in these Search features, Google tells you to use Google-Extended. The longer split between Googlebot and Google-Extended is in the citations guide.
  • To keep a page out of Google Search entirely, Google tells you to use noindex.

Excluding your site does not clear the feature. Google says content from other sites can still appear, and that it may look similar to yours. A competitor’s page, a directory, or an old write-up can still be the supporting link. If an assistant is repeating a retired phone number or the wrong town, excluding yourself does not correct that source. The wrong business details guide is the correction route for a fact you can change on a page you control.

Check the property, not just the business name

The control is set on a Search Console property. It is not a toggle on one town, one service, or one query.

Google’s inheritance note matters for the way small firms verify sites. A child property follows the closest parent that has stopped inheriting. If no parent has been set by hand, it follows the top-level domain property. Owners of a child can override it. Owners of the top-level domain see a notification when a child overrides them.

Two cases from Google’s own examples catch UK sites:

  • example.co.uk is not a child of example.com. A firm with both domains checks both properties. An Isle of Man firm with a .im site and a .co.uk site is in the same position: two properties, two readings. Google does not describe a separate control for the Island.
  • A URL-prefix property for https://www.example.com/ is not the parent of https://example.com/. The www host and the bare host can disagree. Read the property that matches the host you actually publish.

If an agency verified the property, the person who can open Settings on that property is the person who can change it. Looking at a URL-prefix for a staging folder, or at an old http:// property, and assuming it speaks for the live site is how the public host stays on Include while you think you excluded it.

For a local firm, property-wide means every public URL under that property. Excluding it keeps the homepage, the service page, and any town or coverage URL out of those Google features together. That is the right tool when you want the whole site out. It is a blunt tool when the only problem is one stale page. Staying on Include does not publish a coverage area for you. The page still has to name the towns, counties, or parts of the Island you actually serve, in text.

Page controls that still change what AI Overviews can use

Search Console Include does not delete a meta tag. Google’s AI features guide says that to be eligible as a supporting link, a page must be indexed and eligible to be shown in Google Search with a snippet. It also says there are no extra technical requirements, and no special schema, for AI Overviews or AI Mode. The robots meta tag specification is the page that defines the preview rules. The ones that matter here:

  • nosnippet tells Google not to show a text snippet or video preview. Google says this applies to web search, Google Images, Discover, AI Overviews, and AI Mode, and that it prevents the content being used as a direct input for AI Overviews and AI Mode. A static image thumbnail may still show. Use this when you want that page out of snippet text and out of that AI input. Do not use it if you only wanted to leave AI Overviews and you still want an ordinary text snippet. The Search Console exclude control is the one Google describes as leaving the rest of Search alone.
  • data-nosnippet on a span, a div, or a section keeps that block out of snippets. Google says any value on the attribute is ignored, so false does not mean “allow”. An unclosed tag can swallow the rest of the page. Google also says it may extract the attribute before or after rendering, so do not add or remove it on an existing element with JavaScript. Structured data placed inside a data-nosnippet element can still be used. If the block you want kept out is a price, publish the price decision on the page first. The cost-answer guide is that decision.
  • max-snippet sets a character limit for the text snippet and limits how much of the page may be used as a direct input for AI Overviews and AI Mode. Google says that limit does not apply where you have separately allowed a use, including in-page structured data or a licence agreement. A value of 0 is equivalent to nosnippet. A value of -1 lets Google choose the length. If both max-snippet and nosnippet are present, Google says the more restrictive rule applies, which is nosnippet.
  • noindex tells Google not to show the page in search results. A page that is not indexed is not eligible to be a supporting link under the AI features guide. The same tag is how the Search Console help page tells you to block a page from Google Search completely.

These rules are ignored if Google cannot crawl the URL. A Disallow in robots.txt hides the meta tag as well as the page. For a PDF or an image, Google says to use an X-Robots-Tag HTTP header, because a meta tag lives in HTML.

A plugin or a theme can inject nosnippet or noindex on every URL. View the source of the live service page, logged out, and look for both the meta tag and the response header. Google’s troubleshooting steps say to use URL Inspection and read the HTML Googlebot received, then allow time for recrawl. The AI features guide says that recrawl can take from several days to several months, and that you can request recrawling after a real change.

This is the shape of a page-level opt-out of snippet text. Read the live head before you add it. Scoped to Google, it looks like this:

`` <meta name="googlebot" content="nosnippet"> ``

Google says a name="robots" tag applies more widely, and that other engines may treat the same rule differently. Bing’s reading of nosnippet is part of the Copilot guide, not this one.

The page still has to answer a real question

Staying on Include makes the property eligible to be used. It does not write the answer. Google’s AI features guide points back to ordinary SEO: crawling allowed, important pages linked internally, important facts in text rather than only in an image, structured data that matches the visible words, and a current Business Profile where you use one.

For a service firm, put one direct answer near the top of the page you most want understood. Name the service, the places you actually cover, and the next step, such as a form, a phone number, or an email. Say what you do not cover when callers assume a wider area. A Douglas firm that only works on the Island should not publish a sentence that reads as UK-wide attendance. A firm that covers three postcodes should not publish a near-copy page for every village with the town name swapped. That is the local, generative-engine side of the same page: one honest coverage statement, not a stack of doorway URLs.

Keep that sentence in HTML. A picture of a van, a slide, or a PDF rate card is a weak place for the only clear fact. If you mark the page up, the markup should repeat the visible text and add nothing. Google says no special schema is required for these AI features. FAQ markup can still describe questions a person can read on the page. It is not a button that forces an overview.

How to shape that service page is already written up in the answer-engine optimisation guide. How to record where a published claim came from is in the proof ledger guide. How to review the public page without pretending to see inside the model is in the visibility audit guide.

A short check before you change anything

Do this on the live site, on the one property that matches the host customers use.

  1. In Search Console, open Settings, then Search generative AI. Write down Include, Exclude, or Inherit, and the date.
  2. If it says Inherit, open the parent property and read that setting before you assume the default Include is in force.
  3. If you have a second domain, including a .co.uk site beside a .com or a .im site, repeat the reading there. Google’s example treats example.co.uk as a separate property from example.com.
  4. View source on the service URL. Confirm the coverage sentence is text. Confirm the page is not noindex or nosnippet unless you meant it to be. Check the response headers for X-Robots-Tag.
  5. If you use URL Inspection, compare that HTML with what you think the template sends. A plugin can disagree with the file you edited.
  6. Click to the page from the homepage or the service list. Google lists internal links among the basics for these features.
  7. If you change the Search Console control to Exclude, judge it against Google’s own timing note: generally a few days, with some URLs slower because of caching. Do not judge it against a search from the same hour.

What not to claim

  • That Include will get you an AI Overview, a supporting link, or an enquiry. Google says indexing and serving are not guaranteed.
  • That Exclude improves ordinary rankings. Google says the control is not a ranking or inclusion signal for other parts of Search.
  • That Exclude stops AI training, or that blocking Google-Extended removes AI Overviews. Google describes those as different controls.
  • That nosnippet leaves the ordinary text snippet in place. Google says it removes that snippet and blocks use as a direct input for AI Overviews and AI Mode.
  • That another site’s page will stop describing similar work. Google says other sites can still appear in the features.
  • A result, a town you do not cover, or a before-and-after Halo has not published with evidence. This guide does not add one.

Where Halo fits

Halo’s search, AEO and content service covers service-page strategy, answer-first copy, and structured data that matches the page. The public boundary is unchanged: no guaranteed rankings, citations, leads, or revenue. Changing this Search Console control is something the property owner does in Google’s interface. Halo does not need a login to read the public page and say whether the visible answer, the meta tags, and the internal links agree.

To start, send the service URL through the free AI audit. Name the Search Console setting you can see, if you already have one, and the sentence you want understood.

FAQ

No. Google says the control only affects whether your content can appear in certain Search generative AI features, and that it is not a ranking or inclusion signal for other parts of Search. To keep a page out of Google Search entirely, Google points you to noindex.

Is the Search generative AI control the same as blocking Google-Extended?

No. Google says the Search Console control does not affect AI training. To limit training of the models used for responses in those Search features, Google points you to Google-Extended. Google’s crawler documentation says Google-Extended does not change inclusion in Google Search and is not a ranking signal there.

Can I exclude one service page and leave the rest of the site included?

The Search Console control is set on a property, and a child property can inherit it or override it. It is not a switch on a single URL. For one page, Google documents nosnippet, data-nosnippet, max-snippet, and noindex. nosnippet also removes the ordinary text snippet from Search.

If the control is set to Include, will Google cite my business in AI Overviews?

No. Include is the default, and it means your content can appear in those features. Google’s AI features guide says meeting the technical requirements does not mean Google will crawl, index, or serve the page. A supporting link is not guaranteed.

What should I check if my Search Console property says Inherit?

Google says the property is following its parent, and that a change on the parent applies to the child. Open the parent and read the setting before you assume this host is on the default Include. You can override the child property at any time.

Does an Isle of Man firm use a different Google control from a UK firm?

No. Google says the control has been rolled out to websites worldwide. Check each Search Console property you have verified. A .im domain and a .co.uk domain are separate properties. Google’s own example shows that example.co.uk is not a child of example.com.

Sources

  • Google Search Console Help, Search generative AI control, including the 31 August 2026 worldwide rollout, Include and Exclude, inheritance, timing, and the statement that the control is not a ranking signal for the rest of Search and does not affect AI training.
  • Google Search Central, AI features and your website, including snippet eligibility, the preview controls, and the statement that there are no extra requirements for AI Overviews or AI Mode.
  • Google Search Central, robots meta tag specifications, including nosnippet, data-nosnippet, max-snippet, noindex, and the rule that the more restrictive robots rule applies.
  • Google, common crawlers, including Google-Extended and the statement that it does not affect inclusion in Google Search.