TCP SYN (JA4T)

65535_2-4-8-1-3_1440_13

first seen 2026-07-12 03:13 · last seen 2026-07-12 03:13 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1440
Window scale13

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
t13d3112h1_e8f1e7e78f70_d41ae481755e3

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn05enus_91bf09848158_000000000000_0000000000003

TCP SYN (p0f)

fingerprintco-occurrences
6:50+14:0:1440:65535,13:mss,sok,ts,nop,ws:flow:03

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.363

Country

fingerprintco-occurrences
US · United States3

Network (ASN)

fingerprintco-occurrences
AS397423 · Tier.Net Technologies LLC3