User-Agent

Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20100101 Firefox/12.0

first seen 2026-09-30 17:42 · last seen 2026-09-30 17:42 · JSON

Decomposed attributes

Browser / clientFirefox 12.0
Operating systemLinux x86_64
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
t13d251100_b78ed14e2fd0_ab7e3b40a6771

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn05en00_f3bb7aa45ec4_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:42+22:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_101

Country

fingerprintco-occurrences
GB · United Kingdom1

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS1