TCP SYN (p0f)

6:49+15:0:1440:mss*30,10:mss,sok,ts,nop,ws:flow:0

first seen 2026-06-29 00:48 · last seen 2026-09-03 02:02 · JSON

Decomposed attributes

IP version6
Initial TTL49+15
Options length0
MSS1440
Window sizemss*30
Window scale10
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
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
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
ge11nr030000_0db47b7d240d_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 8.13.0, +11 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
43200_2-4-8-1-3_1440_101

User-Agent

fingerprintco-occurrences
Go-http-client/1.11
curl/8.5.01

Country

fingerprintco-occurrences
US · United States1
SE · Sweden1

Network (ASN)

fingerprintco-occurrences
AS39287 · Materialism s.r.l.1
AS219329 · FLASH EDGE INFORMATION TECHNOLOGY LLC1