TCP SYN (JA4T)

65535_2-1-3-1-1-4_1362_8

first seen 2026-08-27 05:37 · last seen 2026-09-21 01:43 · JSON

Decomposed attributes

TCP window65535
Option kinds2-1-3-1-1-4
MSS1362
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
t13d2013h1_2b729b4bf6f3_e24568c0d4404
t13d2913h1_723694b0fccc_5671b5df50291

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0, curl 7.88.1, curl 8.21.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.4
ge11nr11kokr_835281d8e5d9_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1362:65535,8:mss,nop,ws,nop,nop,sok:df,id+:02
4:105+23:0:1362:65535,8:mss,nop,ws,nop,nop,sok::01
4:45+19:0:1362:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:43+21:0:1362:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01

User-Agent

fingerprintco-occurrences
curl/8.19.04
Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/153.0 Mobile/15E148 Safari/604.11

Country

fingerprintco-occurrences
GB · United Kingdom4
KR · South Korea1

Network (ASN)

fingerprintco-occurrences
AS2856 · British Telecommunications Limited4
AS4766 · Korea Telecom1