AI Crawler Index · Common Crawl · CCBot
Which .gov websites block CCBot?
As of 2026-10-03, 5 of the 108 .gov websites whose robots.txt we could read (4.6%) block CCBot, Common Crawl's AI training crawler, on the home page, compared with 12.8% of all sites.
4.6%
of 108 .gov websites block CCBot
12.8%
of all sites
5
sites block it
All 5 .gov websites that block CCBot
| # | Site | Policy | Crawlers blocked |
|---|---|---|---|
| 1216 | congress.gov | Blocks some AI search | 19 of 29 |
| 1509 | wa.gov | Blocks all AI search | 29 of 29 |
| 5924 | nv.gov | Blocks all AI search | 29 of 29 |
| 8356 | ahrq.gov | Blocks some AI search | 3 of 29 |
| 8915 | vermont.gov | Blocks some AI search | 7 of 29 |
Popular .gov websites that allow CCBot
Other AI crawlers and .gov websites
- GPTBot 4.6%
- ClaudeBot 4.6%
- PerplexityBot 4.6%
- Google-Extended 2.8%
- Bytespider 4.6%
- Applebot-Extended 2.8%
- OAI-SearchBot 2.8%
CCBot in other segments
- news websites 35.8%
- .fr (France) websites 35.3%
- .it (Italy) websites 32.7%
- social websites 30.8%
- .au (Australia) websites 29.7%
- reference websites 28.9%
- .nl (Netherlands) websites 27.1%
- .uk (United Kingdom) websites 24.4%
- .de (Germany) websites 23.6%
- .es (Spain) websites 22.2%
- .pl (Poland) websites 20.8%
- .app websites 16.7%
- .ch (Switzerland) websites 16.7%
- .com websites 14%
FAQ
- Which .gov websites block CCBot?
- congress.gov, wa.gov, nv.gov, ahrq.gov, vermont.gov.
- How many .gov websites block CCBot?
- As of 2026-10-03, 5 of the 108 .gov websites whose robots.txt we could read (4.6%) block CCBot, Common Crawl's AI training crawler, on the home page, compared with 12.8% of all sites.
- How do I block or allow CCBot on my site?
- Add "User-agent: CCBot" 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.