TCP SYN (p0f)

4:50+14:0:1380:65535,13:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-21 16:33 · last seen 2026-06-22 22:21 · JSON

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1380
Window size65535
Window scale13
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
t12d180700_4b22cbed5bed_2dae41c691ec2
t13d1812h1_85036bcba153_b26ce05bbdd61

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_cf1edba2959c_000000000000_0000000000002
ge11nn040000_608e01151bf4_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.1

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; rv:143.0) Gecko/20100101 Firefox/143.01
Mozilla/5.0 (Linux; Android 15; Pixel 9) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.361

Country

fingerprintco-occurrences
SG · Singapore2
BR · Brazil1

Network (ASN)

fingerprintco-occurrences
AS13335 · Cloudflare, Inc.3