A new analysis from SparkToro, using Similarweb clickstream data covering January through April 2026, puts the US zero-click search rate at 68.01 percent. Two years ago that figure was 60.45 percent. The 7.5 percentage-point climb represents the steepest two-year acceleration SparkToro has recorded in a decade of tracking this metric.
The raw count makes the stakes concrete: for every 1,000 Google searches, roughly 276 clicks reach the open web. The remaining 724 resolve inside Google’s own properties, through another search, or simply nowhere at all.
AI Overviews is the primary engine behind the acceleration. The feature now appears on more than 20 percent of all searches, and SparkToro cites Ahrefs research showing it cuts click-through rates by close to 60 percent when it triggers. The compound effect is straightforward: broader AI Overviews rollout plus deeper CTR suppression per trigger equals a structurally smaller referral pool for publishers.
The single largest behavioral shift between 2024 and 2026 is the “Clicks 1X+” metric, which covers any click that is not a repeat search: organic links, ad clicks, and navigation to Google’s own products like Maps or YouTube. That figure fell 9.51 points, a 22.9 percent decline. At the same time, the share of users who performed a second search rose 7.2 points, meaning Google is successfully converting answer-seekers into query-generators. More searches, fewer exits.
AI Mode is not yet the cause of this shift. SparkToro found that only 0.34 percent of searches routed to AI Mode, Google’s conversational search experience, during the measurement window. Google announced at I/O 2026 that AI Mode had exceeded 1 billion monthly users and that its query volume was more than doubling each quarter. If that trajectory holds, AI Mode will compound the zero-click trend that AI Overviews is already driving.
From a decade-long perspective: in 2016, approximately 45 percent of queries resolved with no click to any site. Today the figure is 68 percent. That is 23 percentage points in ten years, with a meaningful portion of the gain concentrated in the past 24 months. The study notes that because its data covers browser-based mobile searches rather than the Google search app, where zero-click behavior is more aggressive, the true rate may be higher than reported.
The structural incentives all point in one direction. Google’s ad revenue has grown as the company captures organic query intent directly in the results page. Paid click-through rates and average cost per click both increased in the same period. The resolved US antitrust case removes a legal constraint that had, at minimum, created optics pressure around self-preferencing. SparkToro’s Rand Fishkin argues there is no plausible commercial reason for Google to slow this trajectory.
For search teams, the practical implication is a KPI problem before it is a traffic problem. Organic click volume as a success metric is structurally decoupled from brand influence: a site can rank well, appear in AI Overviews citations, and shape the answer a user reads, while recording zero sessions from that interaction. SparkToro’s prescription is to build measurement around brand correlation and audience attention rather than direct referrals, and to treat website content as AI-answer source material rather than primarily a traffic driver. That reframe is uncomfortable but consistent with what the data has been showing for several years.
Categories where direct search traffic still converts remain intact: branded queries, local search, and high-intent transactional terms continue to produce clicks. Search teams serving those verticals have more runway than pure-informational publishers do. For everyone else, the benchmark to run now is a query-level audit of which pages trigger AI Overviews, what percentage of their target keywords now fall in the 68 percent zero-click bucket, and whether their content appears as a cited source when it does.
Reported by Search Engine Land (Danny Goodwin) on June 9, 2026, based on SparkToro research by Rand Fishkin using Similarweb US clickstream data for January through April 2026.
