A large share of searches ends without a click to the open web, and the presence of an AI summary lowers the chance of a visit further. Three sources examined for what that means to brands.
The classic "traffic from search" metric describes real brand visibility ever less well. When a user gets the answer without a click, the value of the visit falls and the value of presence inside the answer rises. Zero-click data is often retold inaccurately — it is worth staying close to the primary wording.
SparkToro and Datos, in their 2024 study, examine what share of Google searches produce no click to the open web [83]. The methodological limit: this is a panel and clickstream sample, not a full log of every search — the data gives a measurable market frame, and cannot be read as absolute statistics across all users and verticals. The key takeaway for GEO: a substantial share of demand resolves without a visit, outside classic SEO reporting.
Pew Research Center found that users click links less often when an AI summary appears in the results [78]. This does not retire organic search, but it shifts the weight: being a source inside the summary becomes a goal of its own, distinct from a position in the list.
Similarweb's 2025 Generative AI Report records growth in generative AI usage and in referral traffic from AI platforms [84]. That is a channel growing, not a replacement for Google: a separate brand-discovery channel appears, and it needs measuring separately from classic organic.
The classic metric is organic sessions. In the zero-click era, share of voice in answers.
The classic metric is CTR from the SERP. Now, presence and absorption inside the summary.
Referrals from AI platforms measured separately from organic. This describes a shift in metrics, not a claim that classic traffic disappears.
Fewer clicks when an AI summary is present. pewresearch.org
Zero-click: the share without a click (panel/clickstream). sparktoro.com
Growth in GenAI usage and referral traffic.
The case where a search ends without a click to the open web; the SparkToro and Datos study estimates its scale for Google [83].
Per Pew Research, users click links less often when an AI summary is present in the results [78].
Yes. Similarweb records growth in GenAI usage and referral traffic — a channel worth measuring separately from organic [84].