Data Shows AI Overview Halves Click-Through Rate for Top Search Result
The report provides the first domestic data confirming that the assumption of '#1 ranking equals maximum traffic' is no longer valid in the AI search era.
Reporting from 1 source: ASCII.jp.
Itera released a free report based on 1,459 queries showing AI Overview appears in 76.9% of searches. When AI Overview is displayed, the click-through rate for the #1 search result drops from 28.4% to 15.3%. The zero-click rate is estimated at 55.6%, and all 30 genres surveyed show AI Overview appearance rates above 50%.
The report is based on 1,459 queries measured across 30 genres. Itera, which operates an AI marketing business, began continuous observation of AI search citation status on July 14 with its LLMO Cheki tool. The data shows that when Google's AI Overview appears, the overall click-through rate across all rankings drops by an estimated 46%. Citation sources in AI Overview include YouTube, third-party media, and personal blogs at rates comparable to official corporate websites, indicating that competition for AI citations has already begun. The report is freely available and will be updated over time.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.