User-Agent

Mozilla/5.0 (Macintosh; Intel Mac OS X 13_6_1; rv:119.0) Gecko/20100101 Firefox/119.0

first seen 2026-07-09 05:17 · last seen 2026-08-27 00:32 · JSON

Decomposed attributes

Browser / clientFirefox 119.0
Operating systemmacOS 13.6.1
Device classdesktop
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
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1812h1_85036bcba153_b26ce05bbdd61

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr13enus_e337b8b97c0e_000000000000_0000000000001
ge11nr14enus_f26ea99f52e5_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:53+11:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:115+13:0:1340:mss*48,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_71
64320_2-1-3-1-1-4_1340_81

Country

fingerprintco-occurrences
DE · Germany1
US · United States1

Network (ASN)

fingerprintco-occurrences
AS200373 · 3xK Tech GmbH1
AS11878 · tzulo, inc.1