TCP SYN (JA4T)

29200_2-1-1-4-1-3_1414_8

first seen 2026-09-18 04:15 · last seen 2026-09-18 05:27 · JSON

Decomposed attributes

TCP window29200
Option kinds2-1-1-4-1-3
MSS1414
Window scale8

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
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 154.0.8037.57, chrome 152.0.7977.64, +24 more.The fingerprint page shows the full measured match list. More on the catalog.7

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn15ja00_28e542058e45_000000000000_0000000000006
ge20nn15jajp_28e542058e45_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +57 more.The fingerprint page shows the full measured match list. More on the catalog.7

TCP SYN (p0f)

fingerprintco-occurrences
4:115+13:0:1414:mss*20,8:mss,nop,nop,sok,nop,ws:df,id+:02
4:114+14:0:1414:mss*20,8:mss,nop,nop,sok,nop,ws:df,id+:02
4:111+17:0:1414:mss*20,8:mss,nop,nop,sok,nop,ws:df,id+:02
4:112+16:0:1414:mss*20,8:mss,nop,nop,sok,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/152.0.0.0 Safari/537.366
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Mobile Safari/537.361

Country

fingerprintco-occurrences
JP · Japan7

Network (ASN)

fingerprintco-occurrences
AS4713 · NTT DOCOMO BUSINESS,Inc.3
AS2497 · Internet Initiative Japan Inc.2
AS2514 · NTT PC Communications, Inc.2