TCP SYN (p0f)

4:242+13:0:1460:65535,0:mss:df,id+:0

first seen 2026-08-01 07:58 · last seen 2026-08-01 08:26 · JSON

Decomposed attributes

IP version4
Initial TTL242+13
Options length0
MSS1460
Window size65535
Window scale0
Options layoutmss
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
t12d091100_08d6d9b33cd7_3cea1dfb92aa1
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn060000_928b7c31c81a_000000000000_0000000000001
ge20nn13zhcn_0c2c1d640f3e_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +43 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2_1460_002

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.361
Good1

Country

fingerprintco-occurrences
SG · Singapore2

Network (ASN)

fingerprintco-occurrences
AS141389 · GOIP Telecom (Asia Pacific) Pte. Ltd.2