TCP SYN (p0f)

4:39+25:0:8910:mss*7,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-15 13:21 · last seen 2026-07-15 13:21 · JSON

Decomposed attributes

IP version4
Initial TTL39+25
Options length0
MSS8910
Window sizemss*7
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
t13d1513h2_8daaf6152771_ff9cead5a15b1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn12enus_60f823d07c94_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:33554432|4128769|0|m,p,a,s1

TCP SYN (JA4T)

fingerprintco-occurrences
62370_2-4-8-1-3_8910_71

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
FR · France1

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS1