User-Agent

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0) Gecko/20100101 Firefox/150.0

first seen 2026-06-11 12:43 · last seen 2026-08-30 01:34 · 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 150.0
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
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
t13d131200_f57a46bbacb6_9249cab70c772
t13d1714h1_5b57614c22b0_43ade6aba3df2
t13i130900_f57a46bbacb6_e7c2852226511

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn05enus_813e32c09d15_000000000000_0000000000003
ge11nr040000_e1d2031bdfea_000000000000_0000000000001
ge11nr040000_e046cd015f21_000000000000_0000000000001
ge11nr11enus_2682406dd025_000000000000_0000000000001
ge11nr05enus_f3bb7aa45ec4_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:52+12:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:02
4:49+15:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1460:65535,10:mss,sok,ts,nop,ws:df,id+:01
6:53+11:0:1440:mss*30,9:mss,sok,ts,nop,ws:flow:01
6:51+13:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
4:58+6:0:1420:mss*30,9:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
43200_2-4-8-1-3_1440_91
65535_2-4-8-1-3_1460_101
64800_2-4-8-1-3_1440_71
42600_2-4-8-1-3_1420_91

Country

fingerprintco-occurrences
US · United States5
DE · Germany1
JP · Japan1

Network (ASN)

fingerprintco-occurrences
AS22295 · Advin Services LLC4
AS396982 · Google LLC1
AS16276 · OVH SAS1
AS28753 · Leaseweb Deutschland GmbH1