AI Crawler Index · Anthropic · ClaudeBot
Which .gov websites block ClaudeBot?
As of 2026-10-03, 5 of the 108 .gov websites whose robots.txt we could read (4.6%) block ClaudeBot, Anthropic's AI training crawler, on the home page, compared with 11% of all sites.
4.6%
of 108 .gov websites block ClaudeBot
11%
of all sites
5
sites block it
All 5 .gov websites that block ClaudeBot
| # | Site | Policy | Crawlers blocked |
|---|---|---|---|
| 1216 | congress.gov | Blocks some AI search | 19 of 29 |
| 1509 | wa.gov | Blocks all AI search | 29 of 29 |
| 4855 | energystar.gov | Blocks training only | 1 of 29 |
| 5924 | nv.gov | Blocks all AI search | 29 of 29 |
| 8915 | vermont.gov | Blocks some AI search | 7 of 29 |
Popular .gov websites that allow ClaudeBot
Other AI crawlers and .gov websites
- GPTBot 4.6%
- PerplexityBot 4.6%
- Google-Extended 2.8%
- CCBot 4.6%
- Bytespider 4.6%
- Applebot-Extended 2.8%
- OAI-SearchBot 2.8%
ClaudeBot in other segments
- news websites 32%
- .fr (France) websites 30.6%
- .au (Australia) websites 29.7%
- social websites 28.8%
- .it (Italy) websites 25.5%
- .nl (Netherlands) websites 25%
- reference websites 24.4%
- .uk (United Kingdom) websites 21.1%
- .de (Germany) websites 20.2%
- .es (Spain) websites 19.4%
- .app websites 16.7%
- .ch (Switzerland) websites 16.7%
- .net websites 13.6%
- .com websites 12.2%
FAQ
- Which .gov websites block ClaudeBot?
- congress.gov, wa.gov, energystar.gov, nv.gov, vermont.gov.
- How many .gov websites block ClaudeBot?
- As of 2026-10-03, 5 of the 108 .gov websites whose robots.txt we could read (4.6%) block ClaudeBot, Anthropic's AI training crawler, on the home page, compared with 11% of all sites.
- How do I block or allow ClaudeBot on my site?
- Add "User-agent: ClaudeBot" 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.