TCP SYN (p0f)

4:106+22:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:0

first seen 2026-07-06 23:00 · last seen 2026-07-06 23:00 · JSON

Decomposed attributes

IP version4
Initial TTL106+22
Options length0
MSS1440
Window sizemss*44
Window scale0
Options layoutmss,nop,nop,sok
Quirksdf,id+,ecn
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
t13d2013h2_2b729b4bf6f3_e24568c0d4401

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn060000_0c07ec02b430_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:10485760|10420225|0|m,p,a,s1

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-1-4_1440_001

User-Agent

fingerprintco-occurrences
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Chrome/116.0.1938.76 Safari/537.361

Country

fingerprintco-occurrences
US · United States1

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation1