User-Agent

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:59.0) Gecko/20100101 Firefox/59.0

first seen 2026-07-20 08:10 · last seen 2026-10-21 18:30 · 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 59.0
Operating systemWindows 6.1
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
t13d311100_e8f1e7e78f70_009f82a631044

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr060000_47327f3c94e3_000000000000_0000000000004

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:04

TCP SYN (JA4T)

fingerprintco-occurrences
29200_2-4-8-1-3_1460_74

Country

fingerprintco-occurrences
US · United States4

Network (ASN)

fingerprintco-occurrences
AS14061 · DigitalOcean, LLC4

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019,001e,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: java-httpclient 17.0.19, java-httpclient 11.0.31, java-urlconnection 17.0.19, +2 more.The fingerprint page shows the full measured match list. More on the catalog.1