TCP SYN (p0f)

4:48+16:0:1380:65535,6:mss,nop,ws,nop,nop,ts,sok,nop,nop::0

first seen 2026-07-21 18:01 · last seen 2026-07-21 18:01 · JSON

Decomposed attributes

IP version4
Initial TTL48+16
Options length0
MSS1380
Window size65535
Window scale6
Options layoutmss,nop,ws,nop,nop,ts,sok,nop,nop
Payload class0

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
t13i3111h2_e8f1e7e78f70_b26ce05bbdd61

HTTP request (JA4H)

fingerprintco-occurrences
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 (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-8-4-1-1_1380_61

User-Agent

fingerprintco-occurrences
curl/8.5.01

Country

fingerprintco-occurrences
ID · Indonesia1

Network (ASN)

fingerprintco-occurrences
AS139994 · PT XL Axiata Tbk1