TCP SYN (JA4T)

65535_2-4-8-1-3_1360_11

first seen 2026-09-27 11:51 · last seen 2026-09-29 22:10 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1360
Window scale11

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
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog.2
t13d1516h2_8daaf6152771_e5627efa2ab11

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr030000_ff50983941c1_000000000000_0000000000001
ge20nr020000_b89ce445e0b3_000000000000_0000000000001
ge20cr12zhcn_60f823d07c94_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.2
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p1

TCP SYN (p0f)

fingerprintco-occurrences
4:55+9:0:1360:65535,11:mss,sok,ts,nop,ws:df,id+:02
4:43+21:0:1360:65535,11:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
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
Go-http-client/2.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
DE · Germany2
MY · Malaysia1

Network (ASN)

fingerprintco-occurrences
AS197769 · VPS Dedicated LLC2
AS4818 · DiGi Telecommunications Sdn. Bhd.1