User-Agent

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15) Gecko/20100101 Firefox/121.0

first seen 2026-07-22 01:06 · last seen 2026-07-22 01:06 · JSON

Decomposed attributes

Browser / clientFirefox 121.0
Operating systemmacOS 10.15
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
t13d1712h1_ab0a1bf427ad_882d495ac3811

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn08engb_307da189c7d4_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:57+7:0:1436:mss*44,10:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1436_101

Country

fingerprintco-occurrences
US · United States1

Network (ASN)

fingerprintco-occurrences
AS396356 · Latitude.sh1