TCP SYN (p0f)

4:52+12:0:1276:mss*34,12:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 15:44 · last seen 2026-07-01 15:44 · JSON

Decomposed attributes

IP version4
Initial TTL52+12
Options length0
MSS1276
Window sizemss*34
Window scale12
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
t13d3713h1_5c443a9f7afe_adb3fbb29c1a1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn06enus_21ea1759749c_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
43384_2-4-8-1-3_1276_121

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States1

Network (ASN)

fingerprintco-occurrences
AS16509 · Amazon.com, Inc.1