TCP SYN (p0f)

4:43+21:0:1410:mss*30,8:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-09-19 14:44 · last seen 2026-09-20 14:03 · JSON

Decomposed attributes

IP version4
Initial TTL43+21
Options length0
MSS1410
Window sizemss*30
Window scale8
Options layoutmss,sok,ts,nop,ws
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
t13d1212h1_a538d02d76d5_f6eeaf393d2e140

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn06*000_9faab82a4eea_000000000000_000000000000140

TCP SYN (JA4T)

fingerprintco-occurrences
42300_2-4-8-1-3_1410_8140

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; DataForSeoBot/1.0; +https://dataforseo.com/dataforseo-bot)140

Country

fingerprintco-occurrences
DE · Germany140

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH140