Species index / anthropic
ClaudeBot
Operated by Anthropic. Identity is self-declared and unverified.
217Requests
2Distinct IPs
183Well-known probes
2026-08-19First seen
2026-10-04Last seen
Identity
| Kind | crawler |
|---|---|
| Family | anthropic |
| Stated purpose | training |
| UA match | claudebot |
| Verified | no |
| robots.txt | compliant |
| Operator docs | https://support.anthropic.com/en/articles/8896518 |
What it went looking for
The order and selection of discovery paths is a design fingerprint: it reflects which conventions whoever built this client decided to support.
| Path | Hits | First | Last |
|---|---|---|---|
/robots.txt | 444 | 2026-08-19 | 2026-10-04 |
/sitemap.xml | 439 | 2026-08-19 | 2026-10-04 |
/llms.txt | 11 | 2026-08-19 | 2026-08-19 |
/openapi.json | 1 | 2026-08-19 | 2026-08-19 |
/.well-known/agent.json | 1 | 2026-09-06 | 2026-09-06 |
/.well-known/security.txt | 1 | 2026-08-19 | 2026-08-19 |
/ai.txt | 1 | 2026-08-19 | 2026-08-19 |
/.well-known/fomite.json | 1 | 2026-08-19 | 2026-08-19 |
Protocol fingerprint
| HTTP | TLS | Cipher | ALPN | Requests |
|---|---|---|---|---|
| HTTP/2.0 | TLS1.3 | TLS_AES_128_GCM_SHA256 | h2 | 1,070 |
| HTTP/1.1 | TLS1.3 | TLS_AES_128_GCM_SHA256 | http/1.1 | 21 |
| HTTP/1.1 | TLS1.3 | TLS_AES_128_GCM_SHA256 | -- | 2 |
TLS client fingerprint
Captured off the wire before the proxy terminates TLS. JA4 is stable across IP changes and much harder to spoof than a User-Agent string, so it is the strongest identity signal on this page.
| JA4 | JA3 | TLS | ALPN | Seen |
|---|---|---|---|---|
| t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 | d6c96f3cd250f8ef... | 13 | h2,http/1.1 | 2 |
| t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 | bf7917f5d8b299e6... | 13 | h2,http/1.1 | 2 |
| t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 | b0a67967f058ccfe... | 13 | h2,http/1.1 | 2 |
| t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 | 83260d488dba2b38... | 13 | h2,http/1.1 | 2 |
| t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 | 286e033241bad3c1... | 13 | h2,http/1.1 | 2 |
| t13d591000_a33745022dd6_1f22a2ca17c4 | 0cce74b0d9b7f852... | 13 | -- | 2 |
Requests per day (60 days)
| Day | Requests | |
|---|---|---|
| 2026-08-19 | 16 | |
| 2026-08-20 | 2 | |
| 2026-08-21 | 2 | |
| 2026-08-22 | 2 | |
| 2026-08-23 | 2 | |
| 2026-08-24 | 2 | |
| 2026-08-25 | 3 | |
| 2026-08-27 | 2 | |
| 2026-08-28 | 2 | |
| 2026-08-29 | 1 | |
| 2026-08-30 | 2 | |
| 2026-08-31 | 2 | |
| 2026-09-01 | 2 | |
| 2026-09-02 | 2 | |
| 2026-09-03 | 2 | |
| 2026-09-04 | 2 | |
| 2026-09-05 | 2 | |
| 2026-09-06 | 2 | |
| 2026-09-07 | 2 | |
| 2026-09-08 | 2 | |
| 2026-09-09 | 2 | |
| 2026-09-10 | 2 | |
| 2026-09-11 | 2 | |
| 2026-09-12 | 2 | |
| 2026-09-13 | 2 | |
| 2026-09-14 | 2 | |
| 2026-09-15 | 2 | |
| 2026-09-16 | 2 | |
| 2026-09-17 | 2 | |
| 2026-09-18 | 2 | |
| 2026-09-19 | 2 | |
| 2026-09-21 | 2 | |
| 2026-09-22 | 2 | |
| 2026-09-23 | 2 | |
| 2026-09-24 | 2 | |
| 2026-09-25 | 2 | |
| 2026-09-26 | 2 | |
| 2026-09-27 | 23 | |
| 2026-09-28 | 20 | |
| 2026-09-29 | 2 | |
| 2026-09-30 | 20 | |
| 2026-10-01 | 20 | |
| 2026-10-03 | 23 | |
| 2026-10-04 | 21 |