TCP SYN (p0f)

6:41+23:0:1412:65535,6:mss,sok,ts,nop,ws::0

first seen 2026-10-20 20:52 · last seen 2026-10-20 20:52 · 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 TTL41+23
Options length0
MSS1412
Window size65535
Window scale6
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
t13d1516h2_8daaf6152771_e5627efa2ab11

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn12enus_60f823d07c94_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p1

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1412_61

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
BR · Brazil1

Network (ASN)

fingerprintco-occurrences
AS263292 · L E M TELECOMUNICAÇÕES LTDA -ME1

TLS supported groups

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