TCP SYN (p0f)

4:52+12:0:1436:mss*44,10:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-08-09 22:05 · last seen 2026-08-11 12:34 · JSON

Decomposed attributes

IP version4
Initial TTL52+12
Options length0
MSS1436
Window sizemss*44
Window scale10
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+
Payload class0

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
t13d1812h1_85036bcba153_b26ce05bbdd62

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 (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1436_102

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.02

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS396356 · Latitude.sh2