AI referral traffic is moving to homepages, Similarweb and Ahrefs data show

AI referral traffic homepages are becoming the new front door for brands, according to data from Similarweb, Ahrefs and Previsible, even as AI systems continue to cite deeper pages as evidence. For publishers and software companies built around search landing pages, the change points to a web where machines read the long tail and humans arrive closer to conversion.

The pressure on the old search model is already measurable. Pew Research Center tracked 900 U.S. adults and found that when Google shows an AI summary, users click a traditional search result 8% of the time, compared with 15% when no summary appears. Links cited inside the AI answer drew clicks about 1% of the time, according to Pew data cited by Search Engine Land.

Publisher traffic has moved in the same direction. Chartbeat data reported by Axios showed Google Search page views across its publisher network fell 34% from December 2024 to December 2025. Axios also reported that small publishers lost about 60% of search referral traffic over two years. Business Insider’s organic search traffic fell 55% over three years, according to AdExchanger. Chatbot referrals have grown, but Axios reported they still account for less than 1% of publisher page views.

Why does AI search send visitors to homepages?

AI systems appear to use deep pages for evidence, then send users to broader brand entry points after the answer has already handled research and comparison. That means a product page, homepage or site search page may receive the visit, while the cited article, documentation page or benchmark may have done the work of being discoverable to the model.

Similarweb’s 2026 generative AI report found that the share of ChatGPT answers containing live web citations rose more than fivefold in under a year, reaching 6.8% of all answers by May 2026. In travel, Similarweb said the share reached 22.6%. Lily Ray, vice president of SEO and AI search at Amsive, said in the Similarweb report that declining organic visibility tends to reduce AI search visibility because models become less likely to find the content.

After ChatGPT’s May 7 search update, which added more prominent clickable brand links inside answers, Similarweb said referral traffic from ChatGPT rose 157% in one week. The destination mix also changed: homepage referrals rose from about 25% to nearly 60% of ChatGPT referral traffic.

Other datasets show the same split. Similarweb found 65% of ChatGPT-cited URLs are two or three folders deep on a site, while 58.8% of referral traffic lands on homepages. Ahrefs said more than 80% of its AI referral traffic goes to its homepage, product pages and free tools rather than editorial content. Previsible, analyzing 6.77 million AI-referred sessions, found 28.8% of ChatGPT referrals landed on internal site search pages.

What changes for publishers and operators?

The practical change is that citation and conversion are becoming separate jobs. Deep pages need enough structure, specificity and clarity to be retrieved and quoted by AI systems. Homepages, product pages and internal search need to serve visitors who may already know the category, the comparison set and the reason they arrived.

Ahrefs found that 67% of ChatGPT’s most-cited sources are assets marketers cannot directly influence, with Wikipedia accounting for nearly 30%. Ahrefs also found that 28.3% of ChatGPT’s most-cited pages had no Google organic visibility, which complicates the assumption that conventional SEO success maps cleanly to AI retrieval.

The ad market is also shifting inside the chat interface. Similarweb’s ad intelligence data showed sponsored results in 26% of U.S. desktop ChatGPT conversations in June 2026, up from 14% in May. Similarweb said two-thirds of those ads appeared after the second prompt and click-through was about 0.50%.

Google is exposed on both sides of the transition. Similarweb said AI Overviews appeared in more than 40% of Google searches by May 2026. eMarketer projects Google’s share of U.S. search advertising will fall below 50% in 2026, with Amazon taking the largest share of the lost spend. A federal court entered final judgment in the Justice Department search antitrust case in December 2025, barring exclusive default agreements and requiring Google to share search data with qualified competitors; Google appealed in January 2026 and the DOJ cross-appealed seeking stronger remedies.

For teams that depend on inbound demand, the audit is now specific: compare which pages AI systems cite with where AI-referred users land. The companies that can make their deep pages useful to machines and their entry pages useful to pre-informed humans will be better positioned for the traffic that remains.

This story draws on original reporting from VentureBeat.