SEO consultant Cyrus Shepard, founder of Zyppy SEO, estimates that Google's AI Overviews and AI Mode produced about 21% of his site's Google search clicks. He excluded Zyppy's site using Search Console's Search generative AI control on Sept. 1, opted back in on Sept. 29, and compared clicks across the two 28-day periods using the same searches and positions. Search Console counts AI feature clicks as standard clicks, so the share had to be estimated.
Shepard said the site left the AI features in under an hour and returned nearly as fast. Before the test, AI features delivered 500 to 1,000 impressions a day, about 10% of the site's search impressions. He estimates those impressions drew a click-through rate of about 0.9% (0.7% to 1.1% as a reasonable range), against a sitewide average of around 0.4%. Adding what he calls a small halo lift on regular listings, he puts the AI-linked share at 23%.
Shepard called it a single experiment on a single site, a "directional yardstick" rather than a rule, and said Zyppy's work to win AI citations may explain the high share. Zyppy will stay opted in. According to a CMA summary, Google must give publishers impressions, clicks and click-through rate for AI features shown in the U.K., aggregated across features, by Dec. 3, Search Engine Journal reports.
