TCP SYN (JA4T)

32767_2-4-8-1-3_1440_9

first seen 2026-07-01 22:02 · last seen 2026-07-02 10:03 · JSON

Decomposed attributes

TCP window32767
Option kinds2-4-8-1-3
MSS1440
Window scale9

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
t13d1712h1_ab0a1bf427ad_882d495ac3812

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
6:47+17:0:1440:32767,9:mss,sok,ts,nop,ws:flow:01
6:46+18:0:1440:32767,9:mss,sok,ts,nop,ws:flow:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X) AppleWebKit/605.1.15 FeedReportFullText/1.02

Country

fingerprintco-occurrences
SG · Singapore2

Network (ASN)

fingerprintco-occurrences
AS21859 · Zenlayer Inc2