TCP SYN (p0f)

6:51+13:0:8440:mss*7,7:mss,sok,ts,nop,ws:flow:0

first seen 2026-07-24 11:27 · last seen 2026-07-24 11:27 · JSON

Decomposed attributes

IP version6
Initial TTL51+13
Options length0
MSS8440
Window sizemss*7
Window scale7
Options layoutmss,sok,ts,nop,ws
Quirksflow
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
t13d191000_9dc949149365_e7c2852226511

HTTP request (JA4H)

fingerprintco-occurrences
he11nn020000_818f42cc3fd7_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
59080_2-4-8-1-3_8440_71

User-Agent

fingerprintco-occurrences
Mozilla/5.0 CMS-Detector/1.01

Country

fingerprintco-occurrences
US · United States1

Network (ASN)

fingerprintco-occurrences
AS63949 · Akamai Connected Cloud1