TCP SYN (JA4T)

64240_2-1-1-4-1-3_1412_7

first seen 2026-06-30 20:50 · last seen 2026-06-30 20:50 · JSON

Decomposed attributes

TCP window64240
Option kinds2-1-1-4-1-3
MSS1412
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
t13d3113h2_e8f1e7e78f70_ce5650b735ce1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn030000_ff50983941c1_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:33554432;2:0|33488897|0|m,p,s,a Match?Exact match in Thumbprint's published controlled catalog captures: php-curl 7.88.1, curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:53+11:0:1412:mss*44,7:mss,nop,nop,sok,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; +https://www.google.com/bot.html) Safari/537.361

Country

fingerprintco-occurrences
PL · Poland1

Network (ASN)

fingerprintco-occurrences
AS39603 · P4 Sp. z o.o.1