User-Agent

Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:123.0) Gecko/20100101 Firefox/123.0

first seen 2026-06-14 00:40 · last seen 2026-07-01 14:48 · JSON

Decomposed attributes

Browser / clientFirefox 123.0
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
t12d130600_2d7513195f68_e51b7354d87f2
t13d371200_db35923f8641_7c76daad20ec2
t13d3112h1_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.1.0, php-guzzle 8.0.2, php-guzzle 7.14.2, +6 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_88d30a62b7ad_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.25.0.The fingerprint page shows the full measured match list. More on the catalog.2
ge11nn050000_dd8d882f861a_000000000000_0000000000002
ge11nn020000_818f42cc3fd7_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.1.0, php-guzzle 8.2.0, php-guzzle 8.0.2, +7 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:mss*29,9:mss,nop,ws:df,id+:02
4:36+28:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_73

Country

fingerprintco-occurrences
US · United States2
EE · Estonia2
NL · Netherlands1

Network (ASN)

fingerprintco-occurrences
AS6939 · Hurricane Electric LLC2
AS206844 · Riigi Info- ja Kommunikatsioonitehnoloogia Keskus2
AS14061 · DigitalOcean, LLC1