TCP SYN (p0f)

4:103+25:0:1412:65535,8:mss,sok,ts,nop,ws::0

first seen 2026-10-17 14:12 · last seen 2026-10-19 20:34 · 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 TTL103+25
Options length0
MSS1412
Window size65535
Window scale8
Options layoutmss,sok,ts,nop,ws
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
t13d181300_e8a523a41297_43ade6aba3df4

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_c727097c2f59_000000000000_0000000000004

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1412_84

User-Agent

fingerprintco-occurrences
Google-Lens4

Country

fingerprintco-occurrences
FI · Finland4

Network (ASN)

fingerprintco-occurrences
AS15169 · Google LLC4

TLS supported groups

fingerprintco-occurrences
0a0a,001d,0017,00184