Google AI Overviews hit 43% penetration as publishers lose traffic
Google's AI Overviews now appear in 43% of searches, up from 15% a year ago, while publishers face declining referral traffic as users stay within Google's walled garden.
New Similarweb data shows Google AI Overviews appear in 43% of searches, up from 15% a year ago, signaling a fundamental shift in how users access information. AI Mode visits surged from 126 million to 279 million as users replace keyword queries with natural conversation. This keeps users on Google's platform, reducing referral traffic for publishers despite a fivefold increase in citations. A recent ChatGPT update improved referrals, but the broader trend confirms Google's evolution from a web directory to a content destination.