TCP SYN (JA4T)

14600_2-4-8-1-3_1460_10

first seen 2026-07-01 14:43 · last seen 2026-09-26 18:50 · JSON

Decomposed attributes

TCP window14600
Option kinds2-4-8-1-3
MSS1460
Window scale10

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_58ed7828516f2
t13d4312h1_c7886603b240_b26ce05bbdd61
t13d1516h2_8daaf6152771_806a8c22fdea Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, chromium 151.0.7922.34, +28 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1515h1_8daaf6152771_de4a06bb82e31
t13d270900_e2a343ec0ac9_8d2a93c086131

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.3
ge11nn13enus_9db22d02e17a_000000000000_0000000000001
ge11nn040000_c41ada48459b_000000000000_0000000000001
ge20nr13enau_5907f7c6644a_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +81 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1460:mss*10,10:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:1460:mss*10,10:mss,sok,ts,nop,ws:df,id+:01
4:53+11:0:1460:mss*10,10:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1460:mss*10,10:mss,sok,ts,nop,ws:df,id+:01
4:51+13:0:1460:mss*10,10:mss,sok,ts,nop,ws::01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.102 Safari/537.361

Country

fingerprintco-occurrences
IT · Italy2
CO · Colombia2
ID · Indonesia1
IL · Israel1

Network (ASN)

fingerprintco-occurrences
AS12874 · Fastweb SpA1
AS3269 · Telecom Italia S.p.A.1
AS8551 · Bezeq International Ltd.1
AS19429 · ETB - Colombia1
AS7713 · PT Telekomunikasi Indonesia1
AS3549 · Level 3 Parent, LLC1

Cross-transport links

TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).

fingerprintlinked observations
q13d0311h3_55b375c5d22e_653d80c3fe9d1