TCP SYN (p0f)

6:46+18:0:1392:mtu*45,8:mss,nop,ws,nop,nop,sok:flow:0

first seen 2026-10-15 16:32 · last seen 2026-10-15 16:32 · JSON

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version6
Initial TTL46+18
Options length0
MSS1392
Window sizemtu*45
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
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
t12d190800_d83cc789557e_7af1ed941c261

HTTP request (JA4H)

fingerprintco-occurrences
po11nn07vi00_7d361e250c48_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64440_2-1-3-1-1-4_1392_81

User-Agent

fingerprintco-occurrences
Jetpack/12.5; WordPress/6.4; http://site81038860.com1

Country

fingerprintco-occurrences
VN · Vietnam1

Network (ASN)

fingerprintco-occurrences
AS7552 · Viettel Group1

TLS supported groups

fingerprintco-occurrences
001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.11.27, powershell 7.6.8, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1