TCP SYN (JA4T)

65535_2-4-8-1-3_1312_6

first seen 2026-07-25 01:37 · last seen 2026-07-30 03:53 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1312
Window scale6

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
t13d4412h1_fd39b124ee10_58ed7828516f2

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.2

TCP SYN (p0f)

fingerprintco-occurrences
4:43+21:0:1312:65535,6:mss,sok,ts,nop,ws::02

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/86.0.4240.75 Safari/537.361
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.361

Country

fingerprintco-occurrences
BD · Bangladesh2

Network (ASN)

fingerprintco-occurrences
AS24389 · GrameenPhone Ltd.2