How Often Do Google AI Overviews Appear Now, and Whose Pages Do They Cite?

How Often Do AI Overviews Appear in October 2026?

On the keyword sets studied this month, AI Overviews appear more often than not: on 82.5% to 88% of tracked US keywords, depending on the study. An AI Overview is the AI-written summary Google places at the top of some results pages, with links to the pages it drew on; our AI Overview definition covers how it works.

Two vendors published new figures in the past week. Semrush, which sells SEO software, published a study on October 21, 2026 by Luke Harsel tracking a fixed panel of 400 commercial keywords in banking, ecommerce and software each month from September 2025 to August 2026, using Semrush US desktop data (Semrush). In August 2026, 88% of those keywords triggered an AI Overview, up from 45.75% in September 2025. Weighted by monthly search volume, the share was 97.08%, and Semrush says the 12% of keywords without an Overview accounted for less than 3% of search volume (Semrush).

SE Visible, the AI-visibility product of SEO software company SE Ranking, published a study on October 22 by Yulia Deda covering 1,000 US and 1,000 German brand keywords across 17 industries, each checked three times on desktop in October 2026 (SE Visible). In the US, an average of 82.5% of checks returned an AI Overview. In Germany the figure was 40.4%.

The chart shows that the US figures cluster above 80% on every panel, while the year-earlier Semrush figure and the German brand figure sit between 40% and 46%.

The new brand figure lines up with an earlier, thinner one. On October 17 we reported that DemandSphere’s tracked branded keywords went from 26.12% with an AI Overview on September 1 to 82.06% on September 29, but that its post gave no panel size and did not say whether the brand was cited (our DemandSphere report). SE Ranking’s study lands at a similar 82.5% on a disclosed panel of 1,000 US brand keywords, and it adds what DemandSphere left out: which pages the Overviews cite, covered below.

Search Engine Roundtable’s Barry Schwartz drew these together in an October 26 post headlined “Over 80% Of Google Searches Have AI Overviews & Growing,” saying AI Overviews “now show up for over 80% of Google Searches” (Search Engine Roundtable). That is his summary across vendors, not a measured share of all searches. The post also quotes figures from seoClarity that came from a conversation with the author; we leave them out because we could not find them published by seoClarity.

Which Searches Are Most Likely to Show One?

In Semrush’s panel, “best X for Y” searches led at 96.12% in August 2026, and every modifier group fell between 82.05% and 96.12% (Semrush). A year earlier the range was 30.14%, for “reviews” searches, to 63.41%, for “brand vs brand” searches.

By industry, Semrush says ecommerce rose from 32.62% to 85.11%, and all three industries ended between 85% and 91%. Twelve of its 15 industry-and-modifier combinations were at 80% or higher in August, and three, “best X for Y” in banking and in software and “alternatives” in software, reached 100% (Semrush).

SE Ranking’s brand data splits differently. Counting only keywords that showed an Overview in all three checks, electronics and consumer tech was highest at 92% and food and beverages lowest at 58.3%. On the same basis, less-searched brand keywords were more likely to show one: 85.2% for keywords under 50,000 searches against 63.3% for keywords over 1 million (SE Visible). By company size, the study reports 78.7% for mid-market brands, 77.5% for small and midsize businesses and 70.7% for enterprise brands.

The result is not fixed from one search to the next. Only 75.6% of US brand keywords showed an Overview in all three checks, 87% showed one at least once, and 11.4% switched between runs (SE Visible).

Whose Pages Do AI Overviews Cite on a Brand Search?

On US brand searches, the brand’s own properties supply about four in ten citations, and most AI Overviews cite at least one of them. SE Ranking analyzed 827 US AI Overviews and found that 703, or 85%, cited the brand’s website, an app store listing or its Google Business Profile at least once (SE Visible).

The study’s own advice is to “treat the 40.5% as control and the 20.8% as influence,” and it says “the remaining 39% comes from sources outside the brand’s reach” (SE Visible). That 39% is where news coverage, trade press and other independent sites would sit, but SE Ranking does not break it down by publisher type, so we cannot say how much of it is press coverage. The 39% is SE Ranking’s rounding: 40.5% and 20.8% leave 38.7%.

In Germany, brand-managed sources made up 50.9% of citations and Google Business Profiles 6.4%, against 2.7% in the US (SE Visible). Our Google Business Profile guide covers setting one up.

Does Ranking in the Top 10 Decide Which Page Gets Cited?

It decides the site more than the page. SE Ranking found the cited brand’s domain was in the organic top 10 for 98.3% of brand websites cited, yet 62.2% of 1,995 brand-website citations went to a page that was not itself in the top 10 (SE Visible). In its words, “Google was usually citing a website already represented in the top 10, while choosing a different page from that site.”

The page types differ sharply. Homepages made up 71.1% of brand-site URLs in the organic top 10 but 36.8% of AI Overview citations. Product, service and category pages went from 6.1% of organic brand URLs to 22.9% of citations, and “About” and company pages from 3.8% to 11.7%. The study puts it plainly: “AI Overviews rely on the homepage half as much as organic results do” (SE Visible). AI Overviews also cited more brand pages: an average of 2.57 per Overview, against 1.72 in the organic top 10.

This fits what Google says about how the feature works. AI Overviews and AI Mode may use a “query fan-out” technique, running “multiple related searches across subtopics and data sources,” which lets Google show “a wider and more diverse set of helpful links” than a classic search (Google Search Central). Our guide on ranking in Google versus being cited by AI covers the wider gap.

What Is Google Changing in How Citations Look?

Google appears to be testing AI-written descriptions in the citation cards beside AI Overviews, in place of text taken from the cited page. SEO consultant Brodie Clark spotted it on X, and Search Engine Roundtable reported on October 23 that Google “seems to be testing or rolling out” the change (Search Engine Roundtable). Clark wrote that the citation is “being summarised based on the information that Google thinks is most relevant to the query,” and that the text does not appear that way on the source page. Search Engine Roundtable did not report a Google confirmation, and it saw the summaries on some of its test queries, not all.

For a company, this means the line under a cited article may be Google’s paraphrase, not the publisher’s description. Our analysis of whether AI Overviews say what their sources say covers why that matters.

What Does Google Say About Getting Into AI Overviews?

Google says a page needs only to be indexed and eligible for a snippet. Its developer page says there are “no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary,” that a page must be “indexed and eligible to be shown in Google Search with a snippet,” and that “Indexing and serving isn’t guaranteed” (Google Search Central). It adds that AI Overviews appear only when Google’s systems find them “additive to classic Search.”

Google also says sites do not need “new machine readable files, AI text files, or markup,” and there is “no special schema.org structured data” to add. To limit what appears, it points to “nosnippet, data-nosnippet, max-snippet, or noindex” controls (Google Search Central). Our snippet controls guide walks through them.

What This Means for Anyone Buying a Placement

If AI Overviews appear on more than four in five US commercial and brand searches in these panels, the question for a buyer is less whether a placement ranks and more whether it is the kind of page an Overview cites. The SE Ranking data suggests three practical points, which are our recommendations, not Google rules.

• A brand’s own product and company pages matter more than its homepage. They took a larger share of citations than of organic rankings in SE Ranking’s sample.
• About four in ten citations on brand searches came from sources the brand does not run. Independent coverage can only enter that share on its merits; payment does not buy a citation, and sponsored articles are advertising that should be labeled as such.
• Clicks are a separate question. These studies measure presence and citation, not traffic. Our review of whether AI Overviews reduce clicks covers that.

The uncomfortable conclusion is that more Overviews do not mean more value from any single placement. A placement that is not cited, or is cited under a Google-written summary, may be seen by fewer people than its position in the blue links suggests.

Methodology and Limitations

Four limits apply. First, all three vendor figures come from the vendors’ own keyword panels; none is a sample of all Google searches, and Google publishes no share of its own. Second, Semrush and SE Ranking used desktop results, and Semrush covers only three industries and five commercial modifiers. Third, SE Ranking’s study is a single October 2026 snapshot with three checks per keyword, and it says it does not measure accuracy, traffic or conversions. Fourth, “over 80% of Google Searches” is Search Engine Roundtable’s summary across sources, not a measurement.

Conclusion

On the data published this month, AI Overviews are now the default on US commercial and brand searches, appearing on 82.5% to 88% of tracked keywords and on 97.08% of Semrush’s panel by search volume. Brands supply about 40% of the citations on their own brand searches; the rest come from YouTube, reviews and sites the brand does not run. For PR buyers, the useful measure of a placement is increasingly whether Google cites it, which no one can promise.

Frequently Asked Questions

Sources and Methodology

This Explainer is built from two vendor studies published October 21 and 22, 2026, an industry news summary from October 26, an October 23 report on citation cards and Google’s developer documentation on AI features, all read October 26, 2026, plus the DemandSphere figures from our own October 17 report. Figures are reported as each publisher states them; the 38.7% remainder is our arithmetic, and the readings on what the data means for placement buyers are our recommendations, not Google rules. We did not run our own searches or test any keyword panel. Figures Search Engine Roundtable attributes to seoClarity are not used because we could not find them published by seoClarity.

1. vendor research Semrush (Luke Harsel), AI Overviews have nearly doubled across five commercial search modifiers, October 21, 2026. Panel, 88%, 97.08%, 45.75%, modifier and industry figures. Read October 26, 2026.
2. vendor research SE Visible (SE Ranking; Yulia Deda), AI Overviews Appear on 82.5% of US Brand Searches. Here Are the Brand Pages They Cite the Most, October 22, 2026. 82.5%, 40.4%, citation mix and group labels, top-10 overlap, page types. Read October 26, 2026.
3. trade press Search Engine Roundtable (Barry Schwartz), Over 80% Of Google Searches Have AI Overviews & Growing, October 26, 2026. The “over 80%” summary. Read October 26, 2026.
4. trade press Search Engine Roundtable, Google AI Overview Citation Cards With AI-Generated Summary Snippets, October 23, 2026. Citation-card test and Brodie Clark’s quote. Read October 26, 2026.
5. platform documentation Google Search Central, AI features and your website (last updated December 10, 2025). Eligibility, query fan-out, no special optimization, snippet controls. Read October 26, 2026.
6. own data Media Morpheus Research, Did AI Overviews Triple on Brand-Name Searches in September, and What Should a Company Check?, October 17, 2026. DemandSphere’s 26.12% and 82.06% figures.