TCP SYN (p0f)

4:47+17:0:1452:mss*29,6:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-09-15 06:53 · last seen 2026-10-18 11:50 · 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 version4
Initial TTL47+17
Options length0
MSS1452
Window sizemss*29
Window scale6
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+
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
t13d1515h1_8daaf6152771_0a20fe35d3a51
t13d1515h1_8daaf6152771_de4a06bb82e31

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1452_62

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
ES · Spain1
TR · Turkey1

Network (ASN)

fingerprintco-occurrences
AS9121 · Turk Telekomunikasyon Anonim Sirketi1
AS57269 · DIGI SPAIN TELECOM S.A1

TLS supported groups

fingerprintco-occurrences
0a0a,001d,0017,00181