User-Agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Claude-User/1.0; +claude-user@anthropic.com)

first seen 2026-07-04 09:44 · last seen 2026-09-16 07:22 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Browser / clientClaude-User 1.0
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1713h1_ab0a1bf427ad_ecd0401ec68b Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1.The fingerprint page shows the full measured match list. More on the catalog.10

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_be0d0b335e46_000000000000_00000000000010

TCP SYN (p0f)

fingerprintco-occurrences
4:57+7:0:1240:24704,7:mss,sok,ts,nop,ws:df:09
4:58+6:0:1420:28288,7:mss,sok,ts,nop,ws:df:01

TCP SYN (JA4T)

fingerprintco-occurrences
24704_2-4-8-1-3_1240_79
28288_2-4-8-1-3_1420_71

Country

fingerprintco-occurrences
US · United States10

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC10