User-Agent

Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115

first seen 2026-07-13 01:19 · last seen 2026-08-31 19:01 · JSON

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 / clientFirefox 115
Operating systemWindows 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
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.2
t13d131100_f57a46bbacb6_e5728521abd41

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr07enus_b23b8373b424_000000000000_0000000000003

TCP SYN (p0f)

fingerprintco-occurrences
4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:46+18:0:1460:mss*44,9:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_72
64240_2-4-8-1-3_1460_91

Country

fingerprintco-occurrences
SE · Sweden3

Network (ASN)

fingerprintco-occurrences
AS42708 · Glesys AB1
AS51747 · Internet Vikings International AB1
AS16312 · Internet Vikings International AB1