Google’s 2.5 billion-user AI Overviews push SEO toward visibility, not just rankings

Google says AI Overviews now has more than 2.5 billion monthly active users, with AI Mode surpassing one billion monthly users, a scale that helps explain why search marketers are rethinking what counts as visibility. As brightonSEO San Diego opens on 15-16 September at the San Diego Convention Center, the industry backdrop is a search market where generative AI features are no longer peripheral.

Google’s June updates gave that shift a sharper operational shape. The company introduced dedicated Search Console reporting for generative AI features in Search and Discover, offering website owners new visibility into how their pages appear in products such as AI Overviews and AI Mode. By late August, Google said those insights had been rolled out to all websites worldwide.

Adriaan Brits, CEO of Sitetrail, said: “The exciting thing about this year’s event in San Diego is that we’ve just updated NewsPass to deliver live news from independent media within minutes of submission. Today, the focus is shifting—it’s less about earning a backlink and more about getting cited by AI for speed and accuracy. If you're open to stepping away from the old playbook, this new era of search and discovery offers incredible opportunities.”

That view lines up with the way Google is framing discovery in AI search. The company says its generative AI features are designed to help people find and visit websites, while also giving site owners more information about how often their URLs appear in AI features, which pages are shown, the countries involved and, for Search, the devices on which those appearances happen.

For marketers, that matters because it changes what can be measured. The new reports add a dedicated view of impressions from generative AI features while keeping that data within overall Search performance reporting. In practical terms, teams can now examine whether a page is being surfaced inside AI responses even when the path to a click looks different from a traditional search result page.

That does not make rankings irrelevant, but it does widen the field of optimization. If AI products are becoming a first point of contact, then the search task becomes partly about being selected as a source inside those responses. Google’s published guidance points toward content that is distinctive rather than commodity material, supported by clear organization, solid page experience and strong visual assets.

The other notable change is control. Google says it is rolling out a Search Console toggle that lets website owners decide whether their site can appear in and help ground responses in generative AI Search features, including AI Overviews, AI Mode and AI Overviews in Discover. Sites that opt out, Google says, will not receive traffic or impressions from those generative AI features.

That creates a more explicit trade-off than many publishers and brands have previously had to make. Participation in AI search is no longer just something inferred from crawling and indexing rules; it is becoming a separate distribution choice with its own reporting. For search teams, that means AI visibility can be discussed as an inventory and governance question as much as a content question.

The reporting itself also answers one of the most immediate business questions around AI search: where to look for evidence. Google says the new reports show impressions, pages, countries and date-based performance, with device data available for Search results and hourly, daily, weekly and monthly granularity. Even without a full set of downstream metrics, that gives marketers a way to identify which parts of a site are appearing in AI features and where.

That may reshape digital PR priorities as well. In a conventional SEO playbook, campaigns were often judged by links earned, referral traffic and the authority signals attached to placements. In an AI-search environment, the immediate value of a mention may increasingly lie in whether material is surfaced, cited or linked within generated answers, especially when users ask broader or more exploratory questions.

Google has signaled why this could become more important. The company says people are using generative AI tools to find, sort through and understand information, and that they are asking Search entirely new kinds of questions. If query behavior becomes more conversational and synthesis-driven, content that answers clearly, offers unique information and is easy for systems to interpret may gain a larger role in discovery.

That is one reason the line between SEO and digital PR may keep blurring. Coverage, expert commentary, original information and well-structured owned content have long sat in adjacent parts of the marketing stack. Under AI search, those materials may matter together: one helps create source material on the open web, the other helps present it in a form that can be found, understood and surfaced.

Google’s own product changes reinforce that web visibility remains central to the contest. The company says AI features include prominent links to websites, has increased the number of inline links within responses and added website previews to encourage click-through. It has also brought Preferred Sources into AI Overviews and AI Mode, alongside subscription labels intended to let people favor particular sites.

None of that guarantees traffic gains for any individual publisher or brand, but it does suggest the competitive battleground is shifting from a single rankings list to a more layered set of appearances across search surfaces. Search teams that only monitor traditional result positions risk missing where exposure is already happening, while teams that track AI impressions can at least see whether their content is entering that layer.

Google says it is continuing to work with website owners on what additional insights would be most helpful and plans to introduce more metrics over time. For now, the immediate documented change is that AI search visibility is measurable in Search Console and manageable through new controls, giving marketers a clearer framework for deciding how, and where, they want to be discovered.