TCP SYN (JA4T)

65535_2-4-8-1-3_1402_6

first seen 2026-07-24 10:52 · last seen 2026-09-09 18:27 · JSON

Last 7 days (2 observations)

Distinct clients per day (last 30 days, peak 4/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

TCP window65535
Option kinds2-4-8-1-3
MSS1402
Window scale6

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
t13d1515h1_8daaf6152771_de4a06bb82e310
t13d1515h1_8daaf6152771_0a20fe35d3a58
t13d4412h1_fd39b124ee10_58ed7828516f6

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_00000000000015
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.6
ge11nn14enus_4a2973d235de_000000000000_0000000000003

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:03
4:44+20:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:03
4:47+17:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:03
4:42+22:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:03
4:52+12:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:03
4:46+18:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:02
4:53+11:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:02
4:43+21:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:02
4:239+16:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1402:65535,6:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.364
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.67 Safari/537.361

Country

fingerprintco-occurrences
TN · Tunisia8
BR · Brazil7
PS · Palestinian Territories2
HN · Honduras2
US · United States1
UA · Ukraine1
BD · Bangladesh1
VE · Venezuela1
BO · Bolivia1

Network (ASN)

fingerprintco-occurrences
AS37693 · OOREDOO TUNISIE SA5
AS37492 · Orange Tunisie3
AS12975 · PALTEL Autonomous System2
AS268529 · JAMILTON DA GLORIA DE JESUS2
AS262346 · FP Telecomunicacoes Ltda2
AS174 · Cogent Communications, LLC1
AS7738 · V tal1
AS6568 · EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA1
AS153038 · Business Zone Limited1
AS264837 · CORPORACION VISUAL NUEVA ESPARTA, C.A1