The headline number: search is still far ahead
There has been a lot of talk about chatbots replacing search engines. The browser data does not show it happening yet. OneLittleWeb looked at estimated traffic to 10,171 websites in June 2026. Search engines took in 162.19 billion visits that month, which was 57.2% of all tracked web visits. More than 231 AI chatbots, counted together, drew 8.26 billion visits, or about 2.9%.21 That puts search ahead by about 19.6 to 1, a gap of nearly 154 billion visits in one month.22
The comparison between the two leaders is just as one-sided. Google logged 98.19 billion visits and ChatGPT logged 5.32 billion, so Google was about 18.5 times larger. Google alone also had nearly 12 times the traffic of every tracked chatbot put together.22 ChatGPT is still the biggest chatbot, with about 64% of the category. Gemini followed with 1.14 billion visits and Anthropic's Claude with about 968 million.21 Search is even more concentrated. Google and YouTube together made up almost 93% of search-engine visits.21
Both categories shrank from the month before. Search engines fell 2.53% and chatbots fell 5.78%, a loss of roughly 507 million chatbot visits.22 OneLittleWeb co-founder Sujan Sarkar said the two sides are not in a simple race where chatbots take over the search box. Search engines are building conversational answers directly into their results pages.22 That point matters more than the headline ratio.
Where the measurements disagree
The 20-to-1 figure is useful, but people tend to quote it as if it settled the question. It doesn't. The data only covers browser visits, using SEMrush and Ahrefs estimates.22 A review by Technext24 said this leaves out mobile app use, which is where a lot of chatbot activity happens. By its estimate, counting apps narrows the gap from about 19.6x to roughly 13.3x.23 That is still a big lead for search, but it is a smaller one.
Other trackers report very different numbers because they count different things. First Page Sage estimates that Google handles about 56.3% of global digital queries in Q3 2026 and ChatGPT about 18.7%. It also says ChatGPT sessions run more than twice as long as Google's.27 StatCounter's referral data looks almost nothing like that. In September 2026, ChatGPT accounted for just 0.39% of the combined page views that Google and ChatGPT sent to websites. That share has moved between 0.22% and 0.41% since April 2025 without a clear trend.30 One analysis that checked these figures concluded that no dataset actually measures AI assistants' share of all searches. Claims that ChatGPT has 10–15% of the search market, it says, don't have a primary source behind them.30
Our reading: "query share" and "traffic sent" are separate measures, and the confusion between them has driven much of the panic. People clearly use ChatGPT a lot. OpenAI says it reaches more than 1.2 billion people a week.30 But a chatbot conversation usually ends inside the chatbot. Measured by the visits it sends to the open web, AI is still small. Conductor's 2026 benchmarks put AI chatbots and answer engines at 1.08% of website traffic.28 SE Ranking finds that organic search still sends about 134 times more visitors than AI platforms.29
The competition inside the chatbot market
The more active competition is among the AI products themselves. Similarweb data shows ChatGPT's share of worldwide chatbot web traffic falling from 73.3% to 55.5% in the year to August 2026. Gemini's share went from 12.9% to 25.6%, and Claude's from 1.9% to 9.3%.25 First Page Sage reports a similar pattern. It has ChatGPT down 21.2 points year over year, although its share recovered somewhat between Q2 and Q3. It also notes that the Gemini app passed 1 billion monthly active users in August.27
The order changes depending on what is measured. ChatGPT still sends about 80% of the page views that chatbots refer to websites worldwide, according to StatCounter.30 So the decline in its share of visits has not yet shown up in the traffic publishers actually receive.
The real disruption is happening inside Google
Search is winning on visits, but that does not mean publishers are safe. The main risk to publisher traffic is not ChatGPT. It is Google's own AI features.
The studies differ in method, but they all point the same way. Pew Research Center tracked real browsing behaviour. Users clicked a traditional result 8% of the time when an AI summary appeared, compared with 15% when none did. They clicked a link inside the summary itself only 1% of the time.14 Ahrefs found that click-through rates for top-ranking pages were 58% lower on keywords that trigger AI Overviews. That is close to double the 34.5% decline it measured in April 2025.3 One German SEO analysis warns against mixing these figures up. The Ahrefs number describes the top-ranked page on AI Overview queries. It is not an average traffic loss across the web.5
The best evidence on cause and effect comes from a randomized field experiment with 1,065 desktop Chrome users. When AI Overviews were shown, outbound organic clicks fell 39.8% and zero-click searches rose 34.5%. Clicks on ads did not change.2 Users also did not report being any more satisfied.2
The losses are reaching publishers' traffic reports. Chartbeat data in the Reuters Institute's report showed Google search referrals to more than 2,500 publisher sites falling by about a third in 2025, and by 38% in the U.S.1015 Smaller outlets are hit harder. Chartbeat figures show small publishers losing about 60% of referral traffic over two years, against 22% for large publishers.9 News executives expect search traffic to drop another 43% within three years.15
This is also visible in Google's own finances. In one quarter, revenue from Google Network, the ad business that runs on partner websites, fell 4%. Search revenue on Google's own pages grew 19% over the same period.5 More answers are being delivered on Google's results pages and fewer visits are going out to other sites.
The data does not all point the same way. Seer Interactive found organic click-through rates on AI Overview queries dropped to 0.61% in September 2025 and then recovered to 2.4% by February 2026.7 Another dataset showed zero-click rates easing slightly between December 2025 and March 2026.9 Google says clicks are stable and spread across more sites, a claim publishers dispute.8 In May 2026, Google announced five changes meant to send more traffic to publishers. They include inline links, hover previews, a "Subscribed" label and Further Exploration links.35 Whether these help is something publisher traffic data will show over the coming months.
Legal challenges have largely stalled so far. A U.S. antitrust case brought by Chegg and Penske Media was dismissed. An effort by Arkansas newspapers to bring a class action over AI Overviews was also turned away.8 Complaints in Europe are still active.3
Algorithm updates add to the churn
Publishers are dealing with AI summaries and frequent ranking changes at the same time. SE Ranking found that during the March 2026 core and spam updates, 79.5% of top-three URLs changed position, and 24.1% of top-ten pages fell out of the top 100 altogether.3739 Google confirmed that the May 2026 core update ran from May 21 to June 2.40 Analysts, including Glenn Gabe, described it as heavier than March.31 The winners in March were first-party brands, official sources and government domains. Aggregators such as ZipRecruiter and Glassdoor lost ground.3437
One pattern holds across both trends. AI Overviews and the core updates are both moving traffic away from intermediaries and toward primary sources. Sites that mainly repackage information elsewhere are the ones most at risk.
What this means for answer engine optimization
These numbers should change how teams think about answer engine optimization (AEO). AI referrals are a growing but small channel. They make up about 1% of traffic, and one study recorded them growing more than fivefold in a year.1728 Some vendors cite much higher conversion rates for AI-referred visitors. One agency study puts it at 14.2% against 2.8% for organic search. Independent reviewers say the exact figures should be treated with caution.17
Getting cited is starting to matter for Google traffic too. Seer Interactive found that brands not cited in AI Overviews saw organic click-through rates fall 67% over 2025. Cited brands earned 120% more organic clicks per impression.16 Google added reporting for generative AI performance to Search Console in June 2026. That gives site owners a first-party way to track this.19
The practical conclusion is to keep search optimization as the main priority and treat AEO as part of it. Google still sends most of the web's traffic, so the most urgent task is getting cited in Google's own AI answers. Chasing ChatGPT referrals comes after that. Search is not shrinking. What is shrinking is the share of searches that end with a visit to someone else's website.
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Sources
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- 02Researchers find Google AI Overviews cut publisher clicks 39.8% — ppc.land
- 03Google updates AI Overviews with Further Exploration links, subscription labels as 58% publisher click decline triggers antitrust suits — thenextweb.com
- 04Google's AI Overviews and Publisher Traffic: How Antitrust Filing Reveals 58% Click Decline and the Breakdown of the Web Ecosystem — almcorp.com
- 05AI Overviews Traffic 2026: 58% CTR Drop and Google's Response — seo-kreativ.de
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- 22Search Engines Still Crush AI Chatbots in Global Web Traffic — androidheadlines.com
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- 39March 2026 Core Update Caused More Volatility Than December’s — seranking.com
- 40Google Concludes May Core Update After 11-Day Global Rollout — rabbitrank.com