TCP SYN (p0f)

6:112+16:0:1440:mss*45,8:mss,nop,ws,nop,nop,sok:ecn,flow:0

first seen 2026-10-02 21:46 · last seen 2026-10-13 17:45 · 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 TTL112+16
Options length0
MSS1440
Window sizemss*45
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksecn,flow
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
t12d180700_4b22cbed5bed_f28add8e7af03
t13d1812h1_85036bcba153_b26ce05bbdd61

HTTP request (JA4H)

fingerprintco-occurrences
he11nn020000_d5c75abc5c2c_000000000000_0000000000003
ge11nr08enus_33cbba219825_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-1-3-1-1-4_1440_84

User-Agent

fingerprintco-occurrences
Mozlila/5.0 (Linux; Android 7.0; SM-G892A Bulid/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.107 Moblie Safari/537.361

Country

fingerprintco-occurrences
US · United States3
AU · Australia1

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation3
AS16276 · OVH SAS1