TCP SYN (JA4T)

65535_2-4-1-1-1-1-1-1-1-1-1-1-1-3_1312_10

first seen 2026-07-21 10:57 · last seen 2026-07-27 14:00 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-1-1-1-1-1-1-1-1-1-1-1-3
MSS1312
Window scale10

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_58ed7828516f3

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.3

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1312:65535,10:mss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,ws::02
4:45+19:0:1312:65535,10:mss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,ws::01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.361
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/86.0.4240.198 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.361

Country

fingerprintco-occurrences
BD · Bangladesh3

Network (ASN)

fingerprintco-occurrences
AS24389 · GrameenPhone Ltd.3