TCP SYN (p0f)

4:48+16:0:1350:mss*44,0:mss,nop,nop,sok:df,id+:0

first seen 2026-09-25 21:05 · last seen 2026-09-25 21:05 · JSON

Decomposed attributes

IP version4
Initial TTL48+16
Options length0
MSS1350
Window sizemss*44
Window scale0
Options layoutmss,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
t13d1313h2_f57a46bbacb6_7f0f34a4126d1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn06enus_73e2b56f38a6_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:2097152;3:100;9:1|10485760|0|m,s,p,a1

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-1-4_1350_001

User-Agent

fingerprintco-occurrences
facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)1

Country

fingerprintco-occurrences
US · United States1

Network (ASN)

fingerprintco-occurrences
AS64294 · Panasonic Avionics Corporation1