User-Agent

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0

first seen 2026-08-07 12:54 · last seen 2026-10-21 02:03 · JSON

Distinct clients per day (last 30 days, peak 2/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 / client	`Firefox 92.0`
Operating system	`Windows 10.0`
Device class	`desktop`
Note	`inferred 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)

fingerprint	co-occurrences
`t13d251100_b78ed14e2fd0_f50d94e863eb`	3
`t13d1812h1_85036bcba153_b26ce05bbdd6`	2

HTTP request (JA4H)

fingerprint	co-occurrences
`ge11nn05enus_dff23709e538_000000000000_000000000000`	3
`ge11nn07enus_6f5b1826d533_000000000000_000000000000`	1
`ge11nr07enus_6f5b1826d533_000000000000_000000000000`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`6:46+18:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0`	3
`4:106+22:0:1460:62720,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0`	1
`4:118+10:0:1460:62720,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-4-8-1-3_1440_10`	3
`62720_2-1-3-1-1-4_1460_8`	2

Country

fingerprint	co-occurrences
`CH` · Switzerland	3
`JP` · Japan	1
`AE` · United Arab Emirates	1

Network (ASN)

fingerprint	co-occurrences
`AS264617` · GRUPO PANAGLOBAL 15 S.A	3
`AS31898` · Oracle Corporation	2

TLS supported groups

fingerprint	co-occurrences
`11ec,11eb,11ed,001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog.	3