TCP SYN (p0f)

6:50+14:0:1440:mss*30,11:mss,sok,ts,nop,ws:flow:0

first seen 2026-08-13 09:04 · last seen 2026-08-13 11:32 · JSON

Decomposed attributes

IP version6
Initial TTL50+14
Options length0
MSS1440
Window sizemss*30
Window scale11
Options layoutmss,sok,ts,nop,ws
Quirksflow
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
t13d2614h2_2802a3db6c62_a5b99884f7f56
t13d4907h2_0d8feac7bc37_7395dae3b2f3 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr010000_c125d0397b60_000000000000_0000000000006
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
4:2097152;3:100|10485760|0|m,s,p,a6
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
43200_2-4-8-1-3_1440_117

User-Agent

fingerprintco-occurrences
curl/8.7.11

Country

fingerprintco-occurrences
SG · Singapore7

Network (ASN)

fingerprintco-occurrences
AS38136 · Akari Networks7