THE FOMITE

Species index / anthropic

ClaudeBot

Operated by Anthropic. Identity is self-declared and unverified.

36Requests
3Distinct IPs
18Well-known probes
2026-08-19First seen
2026-08-19Last seen

Identity

Kindcrawler
Familyanthropic
Stated purposetraining
UA matchclaudebot
Verifiedno
robots.txtcompliant
Operator docshttps://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.

PathHitsFirstLast
/llms.txt112026-08-192026-08-19
/robots.txt42026-08-192026-08-19
/openapi.json12026-08-192026-08-19
/.well-known/security.txt12026-08-192026-08-19
/sitemap.xml12026-08-192026-08-19
/.well-known/fomite.json12026-08-192026-08-19
/ai.txt12026-08-192026-08-19

Protocol fingerprint

HTTPTLSCipherALPNRequests
HTTP/2.0TLS1.3TLS_AES_128_GCM_SHA256h238
HTTP/1.1TLS1.3TLS_AES_128_GCM_SHA256http/1.112

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.

JA4JA3TLSALPNSeen
t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3d0a4ddbe35c8c4f8...13h2,http/1.11
t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3d0ae1349ec63bff2...13h2,http/1.11
t13d2013h1_2b729b4bf6f3_e24568c0d440fae0e5d973c96ae1...13http/1.11

Requests per day (60 days)

DayRequests 
2026-08-1936