TCP SYN (JA4T)

32120_2-4-8-1-3_1460_9

first seen 2026-06-30 19:31 · last seen 2026-09-12 13:47 · JSON

Last 7 days (3 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

TCP window32120
Option kinds2-4-8-1-3
MSS1460
Window scale9

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
t12d290700_fc2078a0b8c0_8c06664c3ac54
t13d301200_1d37bd780c83_0b298858d6c12

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_bfa5a9b89dd6_000000000000_0000000000003
ge11nr06enus_09fb680966d5_000000000000_0000000000002
ge11nn05en00_61812dc1cc58_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:49+15:0:1460:mss*22,9:mss,sok,ts,nop,ws::03
4:56+8:0:1460:mss*22,9:mss,sok,ts,nop,ws:df,id+:02
4:54+10:0:1460:mss*22,9:mss,sok,ts,nop,ws::01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)4
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.02

Country

fingerprintco-occurrences
NO · Norway4
NL · Netherlands2

Network (ASN)

fingerprintco-occurrences
AS29695 · Lyse Tele AS4
AS48090 · TECHOFF SRV LIMITED2