TCP SYN (p0f)

4:50+14:0:1452:65535,8:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-23 01:32 · last seen 2026-09-15 02:52 · JSON

Last 7 days (4 observations)

Distinct clients per day (last 30 days, peak 6/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1452
Window size65535
Window scale8
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
t13d4412h1_fd39b124ee10_58ed7828516f28
t13d1515h1_8daaf6152771_de4a06bb82e317
t13d1515h1_8daaf6152771_0a20fe35d3a511
t13d1516h1_8daaf6152771_1a63afa7c4782

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.28
ge11nn13enus_9db22d02e17a_000000000000_00000000000024
ge11nn14enus_4a2973d235de_000000000000_0000000000006

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1452_858

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.365
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.364
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.364
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.364
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.362

Country

fingerprintco-occurrences
MX · Mexico12
CA · Canada6
MA · Morocco6
BR · Brazil5
PK · Pakistan5
VE · Venezuela3
IT · Italy2
RS · Serbia2
SY · Syria2
DE · Germany1

Network (ASN)

fingerprintco-occurrences
AS8151 · Uninet S.A. de C.V.10
AS36903 · Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM6
AS577 · Bell Canada6
AS17557 · Pakistan Telecommunication Company Limited3
AS3269 · Telecom Italia S.p.A.2
AS15958 · CETINdoo-NET2
AS269832 · MDS TELECOM C.A.2
AS28343 · UNIFIQUE TELECOMUNICACOES S/A2
AS3209 · Vodafone GmbH1
AS1136 · KPN B.V.1