Being cited in a Google AI Overview does not necessarily mean receiving traffic. An independent academic study analyzing one month of browsing behavior from a representative panel of 900 U.S. adults found that clicks on sources cited inside AI Overviews occurred in only about 1% of visits to AI Overviews.
The paper, Investigating Click Behaviors On Google Search Result Pages That Produce an AI Overview, was submitted to arXiv on August 5, 2026 and presented at IC2S2 2026.
Citation clicks occurred in only about 1% of AI Overview visits
The researchers examined participants' real Google searches and the behavior that followed. Their most striking finding was the rarity of direct clicks to sources cited in AI Overviews: only around one in every 100 visits to a search page containing an AI Overview resulted in a click on one of those cited sources.
For publishers, this highlights a growing distinction between visibility inside an AI-generated answer and the referral traffic traditionally associated with search visibility.
AI Overviews were associated with fewer clicks overall
The study did not find only a reduction in citation clicks. AI Overviews were also associated with fewer clicks more broadly and with higher rates of users ending their browsing sessions on the search results page.
The researchers used a mixed-effects logistic regression model and report that these associations remained after controlling for individual panelists and query characteristics associated with the likelihood of triggering an AI Overview.
Some queries are more likely to trigger AI Overviews
The research also identified characteristics associated with AI Overview appearance. Longer queries, searches beginning with a question word and queries containing both a noun and a verb were among those more likely to generate an AI Overview.
This matters for publishers because AI exposure is not distributed evenly across search intent. Informational and question-like queries can face a different click environment from queries where an AI Overview does not appear.
The zero-click effect moves into AI citations
Traditional SEO often treated a prominent search result as an opportunity to earn a visit. AI-generated search creates another possibility: a publisher can become visible as a cited source while the user's information need is satisfied directly on Google.
That means citation counts alone cannot function as a proxy for traffic. A source can gain AI visibility, contribute to an answer and still receive very few visits from that exposure.
Important limits of the study
The research is independent and observational, not an official Google analysis. It covers one month of browsing by a representative panel of 900 U.S. adults and describes associations in that population and period rather than proving that every AI Overview directly causes the same behavior for every query.
Still, the authors report that the associations between AI Overviews, fewer clicks and more session endings persisted after statistical controls for user and query characteristics.
The NetContentSEO view
The 1% figure crystallizes one of the central problems in AI search measurement: citation visibility and referral traffic are becoming separate metrics.
Publishers therefore need to track AI citations for what they represent — source recognition and answer visibility — without assuming that those citations will reproduce the traffic economics of traditional organic rankings. In AI search, being visible may increasingly mean influencing the answer rather than receiving the click.