TCP SYN (JA4T)

64240_2-4-8-1-3_1410_7

first seen 2026-07-22 13:01 · last seen 2026-09-09 21:08 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 3/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 window64240
Option kinds2-4-8-1-3
MSS1410
Window scale7

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_58ed7828516f6
t13d1515h1_8daaf6152771_de4a06bb82e34
t13d1515h1_8daaf6152771_0a20fe35d3a53

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.6
ge11nn13enus_9db22d02e17a_000000000000_0000000000004
ge11nn14enus_4a2973d235de_000000000000_0000000000003

TCP SYN (p0f)

fingerprintco-occurrences
4:43+21:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:04
4:39+25:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:38+26:0:1410:mss*44,7:mss,sok,ts,nop,ws::01
4:46+18:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:36+28:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:41+23:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:40+24:0:1410:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:44+20:0:1410:mss*44,7:mss,sok,ts,nop,ws::01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 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/116.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/88.0.4324.96 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36 Chrome Generic1
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.361

Country

fingerprintco-occurrences
KW · Kuwait5
BR · Brazil3
SI · Slovenia2
RU · Russia1
ES · Spain1
AE · United Arab Emirates1

Network (ASN)

fingerprintco-occurrences
AS42961 · Mobile Telecommunications Company K.S.C.P.5
AS21283 · A1 Slovenija telekomunikacijske storitve,d.d.2
AS5384 · Emirates Internet1
AS61758 · TOP NET SERVIÇOS LTDA1
AS262566 · Link Sete Servicos de Internet e Redes Ltda1
AS267305 · G & N SERVICOS DE COMUNICACAO E MULTIMIDIA LTDA1
AS12479 · Orange Espagne SA1
AS215623 · OOO LUGALINK1