TL;DR Summary:
AI Isn’t the Whole Story: Organic traffic fell sharply, but ads, algorithm updates, technical issues, and changing search layouts may matter as much as AI Overviews.Big Sites Take the Hit: Publishers and large domains suffered most, while typical small websites remained relatively stable across the U.S. and France.Ads Are Stealing Clicks: Larger ad blocks and sticky sponsored-result sections push organic listings below the fold, making visibility and clicks harder to win.Diagnose Before Blaming AI: Check rankings, ad exposure, site health, and crawler access to identify the real cause of traffic losses.Why is my website losing organic traffic even though I haven’t changed anything? New data from Similarweb points to an answer that goes beyond the usual blame on AI. Organic search traffic dropped 13.2% in the U.S. and 24.4% in France over the past two years, and the organic traffic decline AI impact story turns out to involve ads, algorithm updates, and site size as much as chatbots.
The organic traffic decline AI impact isn’t spread evenly
Kevin Indig analyzed 10,000 domains each in the U.S. and France, using Similarweb data from September 2023 through August 2026. The drop looks different depending on who you are. About 1% of domains account for 40.2% of lost visits in the U.S. and 48.5% in France. Large sites lost traffic, while the typical small site stayed roughly flat, up 2.7% in the U.S. and down just 1.9% in France. Publishers took the worst hit, losing 41.5% of organic traffic in the U.S. and 42.5% in France. Strip publishers out of the U.S. numbers, and the overall decline falls to 7.8%, nearly half the headline figure.
Paid search is eating into organic clicks too
Paid search traffic grew 21% in the U.S. and 17.3% in France over the same two years, while organic traffic shrank. That growth offsets only 36.6% of U.S. organic losses and 6.7% of French losses, so paid search doesn’t explain everything. But Google changed how it displays ads in ways that matter here. On October 13, 2025, Google started grouping up to four text ads under a sticky “Sponsored results” header worldwide. Researcher Tom Capper at Stat found that since June, the average organic result on desktop sits below the fold, meaning you need to scroll before you see it, and ad blocks have doubled in size across a sample of 46,000 search terms.
Google’s algorithm updates add to the organic traffic decline AI impact
Aggressive algorithm changes add another layer. An unnamed Google update in January 2026 wiped out rankings for many sites, and Indig says this shows up in the aggregate traffic numbers. Some updates also change which types of sites Google favors, shifting visibility from large aggregator sites toward smaller, personal ones, a pattern Indig has noticed in travel search results. Before pinning a traffic drop on AI Overviews, it’s worth ruling out these site-level factors first, since an algorithm update or a technical issue blocking crawler access can produce the exact same symptoms. A diagnostic tool like Screpy is built for this kind of triage, running a technical audit of your site and checking which bots, including AI crawlers, can actually access and read your content, so you can tell whether a ranking slide traces back to Google’s algorithm or to something fixable on your own pages.
Comparing the U.S. and France narrows the AI Overviews gap
France lost organic traffic faster than the U.S., but Google only rolled out AI Overviews there in July 2026. This looked like strong evidence of AI Overviews causing damage fast. However, when Indig compared the same 1,725 sites in both countries, the gap narrowed sharply. Organic visits per day fell 5.1% in France and 3.6% in the U.S. between June and August 2026. The difference in country-level averages came mostly from which sites were included in each sample, not from AI Overviews alone.
AI traffic itself remains small
AI referral traffic grew faster than any other channel, but it still reaches just 2.85% of search traffic in the U.S. and 2.44% in France. Across all traffic sources, AI accounts for only 0.5% of total visits. Even if that number triples over the next year, it stays small compared to organic or paid search.
If you run a website, check whether your traffic losses match your site’s size and industry, not just the national average. Look at your ad visibility on your own target searches, since Google’s larger ad blocks may cost you more clicks than AI Overviews do. Watch your rankings around major algorithm updates, since those shifts often get blamed on AI when the real cause sits elsewhere. Before assuming AI Overviews or a vague “AI impact” tanked your traffic, a tool like Screpy’s SEO audit platform can help you separate algorithm-update damage from AI crawler visibility gaps by auditing your site’s technical health and showing which bots can actually reach your content.
