TCP SYN (p0f)

4:244+11:0:1460:26883,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-08-25 09:13 · last seen 2026-08-25 18:07 · JSON

Distinct clients per day (last 30 days, peak 2/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 TTL244+11
Options length0
MSS1460
Window size26883
Window scale7
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
t12d080800_723ebca51f63_5a95de72b7692

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_1d610a342144_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
26883_2-4-8-1-3_1460_72

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/600.1.25 (KHTML, like Gecko) Version/8.0 Safari/600.1.252

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS14618 · Amazon.com, Inc.2