TCP SYN (JA4T)

64578_2-1-3-1-1-4_1374_8

first seen 2026-08-15 20:59 · last seen 2026-08-15 20:59 · JSON

Decomposed attributes

TCP window64578
Option kinds2-1-3-1-1-4
MSS1374
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
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr08engb_aea191eebe67_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:108+20:0:1374:mss*47,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
CY · Cyprus1

Network (ASN)

fingerprintco-occurrences
AS9009 · M247 Europe SRL1