TCP SYN (JA4T)

64240_2-4-8-1-3_1400_8

first seen 2026-07-02 15:58 · last seen 2026-07-02 15:58 · JSON

Decomposed attributes

TCP window64240
Option kinds2-4-8-1-3
MSS1400
Window scale8

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
t13d9013h1_c6771aded2ed_57a60bdf03d11

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.1

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1400:mss*44,8:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.01

Country

fingerprintco-occurrences
CH · Switzerland1

Network (ASN)

fingerprintco-occurrences
AS402253 · SKN Subnet & Telecom Ltd1