TCP SYN (JA4T)

65535_2-4-8-1-3_1348_9

first seen 2026-07-02 11:58 · last seen 2026-08-03 19:37 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1348
Window scale9

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
t13d171000_5b57614c22b0_78e6aca7449b1
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.5.0, php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b5e847c80b4c_000000000000_0000000000001
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:10485760;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1348:65535,9:mss,sok,ts,nop,ws:id-:01
4:47+17:0:1348:65535,9:mss,sok,ts,nop,ws:id-:01

User-Agent

fingerprintco-occurrences
curl/8.5.01
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Mobile/15E148 Safari/604.11

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS21928 · T-Mobile USA, Inc.2