TCP SYN (p0f)

6:51+13:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0

first seen 2026-07-06 02:36 · last seen 2026-07-06 02:36 · JSON

Decomposed attributes

IP version6
Initial TTL51+13
Options length0
MSS1440
Window sizemss*45
Window scale10
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
t13d1617h2_86a278354501_3e9721a6796e3

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr13enus_9e2b86631664_000000000000_0000000000001
ge20nn11enus_3901d4197baf_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 153.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr11enus_3901d4197baf_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.2
1:65536;2:0;4:131072;5:16384|12517377|11:0:0:42|m,p,a,s1

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_103

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64; rv:152.0) Gecko/20100101 Firefox/152.03

Country

fingerprintco-occurrences
US · United States3

Network (ASN)

fingerprintco-occurrences
AS7922 · Comcast Cable Communications, LLC3