Organic search traffic to American websites fell 13.2 percent over the past two years, from 19.9 billion visits in August 2024 to 17.3 billion in August 2026, according to a Similarweb analysis of 10,000 U.S. domains compiled by growth strategist Kevin Indig in his Growth Memo newsletter and reported in Search Engine Land. The headline number tells one story. The quartile breakdown tells a different one.

Indig’s cut by site size shows the smallest quartile of U.S. domains actually gained 2.7 percent, which he describes as “roughly flat.” Large sites lost 13.5 percent. Publishers, isolated as a cohort, shed 41.5 percent of their American organic traffic. A separate Chartbeat dataset cited in the Reuters Institute’s 2026 Trends and Predictions report puts the U.S. publisher decline at 38 percent between November 2024 and November 2025, broadly corroborating the direction and magnitude.

The practical read is that averages mislead. A 20-employee services firm looking at a 42 percent drop at a national publisher and extrapolating has imported the wrong benchmark. “the country average provides context, but comparable websites offer a more useful benchmark for an individual business,” Indig writes. France, where Google rolled out A.I. Overviews in July, posted a steeper 24.4 percent organic decline across the same 10,000-domain sample.

Indig also pushes back on the reflex to blame A.I. for everything. Paid search in the United States rose 21 percent over the two-year window. Google began grouping as many as four text ads under a sticky “Sponsored results” header in October 2025, and reported paid clicks up 13 percent in its second-quarter 2026 earnings. “Higher ad load on Google and more aggressive algorithm updates cause severe damage to SEO clicks, that are often underreported because it’s easier to explain drops with A.I.,” he writes. The ad-unit redesign and the ranking changes are doing real work that gets credited to chatbots.

The chatbot numbers themselves remain small. A.I. referral traffic sits at 2.85 percent of search traffic and roughly 0.5 percent of total visits in the United States; Chartbeat puts the A.I. chatbot share of publisher traffic at 0.01 percent. “Even if it doubles or triples over the next 12 months, the impact is negligible,” Indig writes. Siftly, an A.I.-visibility vendor, argues the referrals that do arrive convert at higher rates, though it doesn’t independently quantify the lift.

That asymmetry, large volume loss on one side and a small but higher-converting trickle on the other, is the structural shape operators now have to plan against. It runs alongside separate reporting on Google’s A.I. Overviews intercepting commercial searches, on A.I.-written brand first impressions, and on the gap in A.I.-answer coverage of small businesses. The erosion isn’t uniform, and the replacement channel isn’t yet material. Both facts are the story.

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