User-Agent

Mozilla/5.0 (X11; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0

first seen 2026-07-01 23:15 · last seen 2026-10-28 14:49 · JSON

Last 7 days (3 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 / clientFirefox 134.0
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
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.6

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr08enus_acc2f3543596_000000000000_0000000000002
ge11nn08enus_acc2f3543596_000000000000_0000000000002
po11nn10enus_9cf0d24ef403_000000000000_0000000000002

TCP SYN (p0f)

fingerprintco-occurrences
4:57+7:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:06

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_126

Country

fingerprintco-occurrences
NL · Netherlands6

Network (ASN)

fingerprintco-occurrences
AS48090 · TECHOFF SRV LIMITED6

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 158.0.1, firefox 157.0, firefox 157.0.1, +5 more.The fingerprint page shows the full measured match list. More on the catalog.6