TCP SYN (p0f)

6:52+12:0:1404:mss*45,7:mss,sok,ts,nop,ws:flow:0

first seen 2026-09-08 13:37 · last seen 2026-09-08 13:37 · JSON

Distinct clients per day (last 30 days, peak 2/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 TTL52+12
Options length0
MSS1404
Window sizemss*45
Window scale7
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
t12d1515h2_8daaf6152771_4d8a99c1bc012

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn05enus_f649ff7cdbc1_000000000000_0000000000002

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;3:1000;4:6291456;5:16384;6:262144|15663105|0|m,a,s,p2

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1404_72

User-Agent

fingerprintco-occurrences
Adnet-Proxy-Verification/1.02

Country

fingerprintco-occurrences
CN · China2

Network (ASN)

fingerprintco-occurrences
AS132203 · Tencent Building, Kejizhongyi Avenue2