Studies

Original data on how search engines and AI crawlers see the web. Every study shows its method and its denominators, so you can check the math.

October 2026 · AI search · Government websites
Hundreds of local government websites block ChatGPT search while letting Google in
I checked the robots.txt of all 15,331 state and local .gov domains. 353 block ChatGPT search while letting Google in, and two shared files account for two-thirds of them.
353government sites block ChatGPT search while allowing Google
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