TCP SYN (JA4T)

64240_2-4-8-1-3_1384_7

first seen 2026-07-22 14:50 · last seen 2026-07-26 09:32 · JSON

Decomposed attributes

TCP window64240
Option kinds2-4-8-1-3
MSS1384
Window scale7

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
4:44+20:0:1384:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:45+19:0:1384:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/537.36 (KHTML, like Gecko, Mediapartners-Google) Chrome/89.0.4389.93 Safari/537.361

Country

fingerprintco-occurrences
CL · Chile2
PR · Puerto Rico1

Network (ASN)

fingerprintco-occurrences
AS6535 · Telmex Servicios Empresariales S.A.2
AS14638 · Liberty Communications of Puerto Rico LLC1