User-Agent

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:145.0) Gecko/20100101 Firefox/145.0

first seen 2026-06-11 23:07 · last seen 2026-10-29 08:42 · JSON

Last 7 days (1 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 145.0
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
t13d3113h1_e8f1e7e78f70_89992bd7bbd711
t13d1715h2_5b57614c22b0_3d5424432f571
t13d1514h2_8daaf6152771_7bdcd1fc0afb1

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.6
ge11nn040000_e1d2031bdfea_000000000000_0000000000005
ge20nn10enus_3d89cb764348_000000000000_0000000000001
ge20nr11ruru_3901d4197baf_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1
1:65536;4:131072;5:16384|12517377|3:0:0:201,5:0:0:101,7:0:0:1,9:0:7:1,11:0:3:1,13:0:0:241,15:0:13:42|m,p,a,s1

TCP SYN (p0f)

fingerprintco-occurrences
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:04
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:03
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:110+18:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
6:47+17:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
6:51+13:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
4:47+17:0:1452:65535,9:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_73
64800_2-4-8-1-3_1440_72
64240_2-1-3-1-1-4_1440_81
65535_2-4-8-1-3_1452_91

Country

fingerprintco-occurrences
RU · Russia3
US · United States2
JP · Japan2
GB · United Kingdom2
DE · Germany1
SG · Singapore1
SE · Sweden1
CL · Chile1

Network (ASN)

fingerprintco-occurrences
AS13213 · THG HOSTING LIMITED4
AS9009 · M247 Europe SRL3
AS57169 · EDIS GmbH2
AS14061 · DigitalOcean, LLC1
AS42708 · Glesys AB1
AS7418 · TELEFÓNICA CHILE S.A.1
AS8749 · JSC "Redcom-lnternet"1

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.1