User-Agent

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0

first seen 2026-09-04 07:40 · last seen 2026-09-14 22:56 · 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 155.0
Operating systemWindows 10.0
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
q13d0315h3_55b375c5d22e_dc5437974b47 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +18 more.The fingerprint page shows the full measured match list. More on the catalog.2

HTTP request (JA4H)

fingerprintco-occurrences
ge30nn10enus_9fcbd3f1e2d6_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.6, +18 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge30nr10engb_9fcbd3f1e2d6_000000000000_0000000000001

QUIC transport params

fingerprintco-occurrences
q13_c3e7031b10dc Match?Exact match in Thumbprint's published controlled catalog captures: firefox 155.0.1, firefox 155.0.The fingerprint page shows the full measured match list. More on the catalog.2

Country

fingerprintco-occurrences
DE · Germany1
ES · Spain1

Network (ASN)

fingerprintco-occurrences
AS51202 · NUXOA GmbH1
AS12334 · R Cable y Telecable Telecomunicaciones, S.A.U.1