AI Crawler Index · Google · Google-Extended
Which reference websites block Google-Extended?
As of 2026-10-03, 8 of the 45 reference websites whose robots.txt we could read (17.8%) block Google-Extended, Google's AI training crawler, on the home page, compared with 9.5% of all sites; 1 more block it on some paths.
17.8%
of 45 reference websites block Google-Extended
9.5%
of all sites
8
sites block it
All 8 reference websites that block Google-Extended
| # | Site | Policy | Crawlers blocked |
|---|---|---|---|
| 115 | imdb.com | Blocks some AI search | 24 of 29 |
| 126 | nature.com | Blocks some AI search | 11 of 29 |
| 378 | academia.edu | Blocks some AI search | 21 of 29 |
| 417 | genius.com | Blocks some AI search | 10 of 29 |
| 471 | letterboxd.com | Blocks training only | 7 of 29 |
| 604 | themoviedb.org | Blocks some AI search | 20 of 29 |
| 608 | mydramalist.com | Blocks some AI search | 11 of 29 |
| 632 | jstor.org | Blocks training only | 4 of 29 |
Popular reference websites that allow Google-Extended
Other AI crawlers and reference websites
- GPTBot 28.9%
- ClaudeBot 24.4%
- PerplexityBot 8.9%
- CCBot 28.9%
- Bytespider 22.2%
- Applebot-Extended 20%
- OAI-SearchBot 6.7%
Google-Extended in other segments
- .fr (France) websites 29.4%
- social websites 28.8%
- .au (Australia) websites 27%
- news websites 26.6%
- .it (Italy) websites 23.6%
- .nl (Netherlands) websites 22.9%
- .de (Germany) websites 20.2%
- .app websites 16.7%
- .ch (Switzerland) websites 13.9%
- .net websites 11.9%
- .com websites 10.2%
- .uk (United Kingdom) websites 10%
- .es (Spain) websites 8.3%
- e-commerce websites 7.9%
FAQ
- Which reference websites block Google-Extended?
- imdb.com, nature.com, academia.edu, genius.com, letterboxd.com, themoviedb.org, mydramalist.com, jstor.org.
- How many reference websites block Google-Extended?
- As of 2026-10-03, 8 of the 45 reference websites whose robots.txt we could read (17.8%) block Google-Extended, Google's AI training crawler, on the home page, compared with 9.5% of all sites; 1 more block it on some paths.
- How do I block or allow Google-Extended on my site?
- Add "User-agent: Google-Extended" followed by "Disallow: /" to https://<your-site>/robots.txt to block it, or "Allow: /" to allow it. Check the result with the free AI crawler checker at tools.yukai.uk/free/ai-crawler-checker.