What the trackers found
Three independent trackers now put Google’s AI Overviews on more than 80% of searches, a sharp rise from roughly half of searches in June 2025 and about 15% the year before. The figures come from different keyword panels and methods, so they are not directly comparable, but they point in the same direction: AI-generated answers have moved from an occasional feature to the default experience for many queries. Google has not announced a change that explains the jump.
The figure comes from a round-up of tracker data published on 26 October 2026, which put AI Overviews on over 80% of Google searches. It drew on three sources: Semrush, SE Ranking and seoClarity, each measuring a different slice of search. The convergence matters more than any number, because each tracker uses its keyword set, device mix and counting method.
Semrush’s study, published on 21 October 2026, tracked a panel of 400 keywords in banking, ecommerce and software on United States desktop search from September 2025 to August 2026. It found AI Overviews on 88% of those keywords in August 2026, up from 45.75% in September 2025, and 97.08% when weighted by search volume. Ecommerce rose from 32.62% to 85.11%.
That study measures whether an Overview appeared, not whether anyone clicked it, and its panel is deliberately commercial. A related Semrush finding on commercial keywords is already covered in detail on this site, and this post’s new angle is the convergence across trackers rather than one panel alone.
SE Ranking’s study, published on 22 October 2026, took a different approach: 1,000 United States and 1,000 German brand keywords across 17 industries, checked three times on desktop in October 2026. It found AI Overviews on 82.5% of US searches and 40.4% of German ones, showing how far queries — the searches tied to a company’s name — have shifted.
seoClarity’s data, cited in the round-up, put AI Overviews on over 62% of queries, ranging from 55% to 84% by industry. Other September data points the same way: DemandSphere’s panel rose from 26% in early September to over 80% late September, peaking at 90.48% on 27 September, while a test of 100 brands found Overviews for 93 of them.
Why It Matters
For publishers and brands, the implication is that the search result is now often the answer. When an Overview appears on more than four in five brand searches, the company’s website competes with Google’s summary for the first impression. That does not mean traffic collapses — the trackers measure presence, not clicks — but it changes what ranking is worth.
The caveat cuts both ways. Google has not confirmed a single change behind the rise, and the trackers’ panels differ enough that their percentages should not be averaged into one figure. That is why this post reports each tracker separately.
What can be said is that three independent measurements, taken in the same month, all land above 80% for the searches they track most closely. A related test of how Overviews present sources is covered in our earlier report on citation cards.
What to watch next is whether the German gap closes. SE Ranking’s 40.4% figure for German brand searches sits far below the 82.5% United States figure, suggesting rollout, language or query-mix differences still shape where Overviews appear. If German coverage climbs toward United States levels, the shift will look global rather than mainly American.
Background
AI Overviews began as Google’s generative search experiment before rolling out widely in the United States, and tracker coverage has climbed steadily through 2025. The latest figures suggest that climb accelerated sharply in the autumn of 2026, though Google has not publicly explained the change.
Source: Search Engine Roundtable report.
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