TCP SYN (p0f)

6:52+12:0:1390:65535,8:mss,nop,ws,nop,nop,sok:flow:0

first seen 2026-09-01 11:22 · last seen 2026-09-01 11:22 · 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 TTL52+12
Options length0
MSS1390
Window size65535
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
t13d201200_2b729b4bf6f3_e24568c0d4401

HTTP request (JA4H)

fingerprintco-occurrences
po11nn07trtr_7d361e250c48_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-4_1390_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 6.3; x86) AppleWebKit/537.36 (KHTML, like Gecko) Opera/80.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
TR · Turkey1

Network (ASN)

fingerprintco-occurrences
AS16135 · Turkcell A.S.1