TCP SYN (p0f)

4:119+9:0:1320:mss*49,8:mss,nop,ws,nop,nop,sok:df,id+:0

first seen 2026-06-22 18:36 · last seen 2026-06-22 18:37 · JSON

Decomposed attributes

IP version4
Initial TTL119+9
Options length0
MSS1320
Window sizemss*49
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+
Payload class0

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
t13d1711h2_5dc684030f41_86ae21f8795b4

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr13enus_25af28280cc6_000000000000_0000000000002
ge20nn14enus_9ae5e17b70bc_000000000000_0000000000001
ge20nr14enus_9ae5e17b70bc_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
0|10485760|0|m,p,a,s4

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.04

Country

fingerprintco-occurrences
LV · Latvia4

Network (ASN)

fingerprintco-occurrences
AS399498 · Private Networks Labs LLC4