University of Pennsylvania & Northeastern University (MA) ran a study that found:
- Google’s AI search features reduce traffic to websites.
- Google’s AI Mode provided a poor user experience and made users less satisfied with Google Search.
- Removing AI Overviews had the effect of increasing clicks to websites without any detectable decline in users’ Google Search experience.
- AI Mode keeps users inside Google’s search experience longer and sends them to websites less often than without AI Mode.
We already knew AI on SERPs means fewer clicks to websites, but it's nice to have an official study saying so. They conducted a randomized field experiment of 1100 people that tracked real Google searches & had a follow-up survey after one week.
One thing missing from this experiment (IMO) is search intent. Sometimes an AI summary is the best UX when you already have zero intention of visiting a website and you just want to know how many tablespoons are in a quarter cup. But I have rage quit AI search plenty of times. I think DuckDuckGo has the right idea letting people choose whether they want AI in search results or not.




