TCP SYN (p0f)

4:241+14:0:1420:mss*42,8:mss,nop,ws,sok,ts:df,id+:0

first seen 2026-07-22 09:13 · last seen 2026-07-22 09:13 · JSON

Decomposed attributes

IP version4
Initial TTL241+14
Options length0
MSS1420
Window sizemss*42
Window scale8
Options layoutmss,nop,ws,sok,ts
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
t13d1613h2_86a278354501_748f4c70de1c4
t13d1614h2_86a278354501_3dd24b5ebec41

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr11enus_187a9385d229_000000000000_0000000000004
ge20nn11enus_684b26f0fcdf_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:4096;2:0;4:32768;5:16384|12517377|3:0:0:22|m,p,a,s2
1:4096;2:0;4:32768;5:16384|12517377|3:0:0:42|m,p,a,s1
1:4096;2:0;4:32768;5:16384|12517377|5:0:0:22|m,p,a,s1
1:4096;2:0;4:32768;5:16384|12517377|7:0:0:22|m,p,a,s1

TCP SYN (JA4T)

fingerprintco-occurrences
59640_2-1-3-4-8_1420_85

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Android 11; Mobile; rv:152.0) Gecko/152.0 Firefox/152.05

Country

fingerprintco-occurrences
FR · France5

Network (ASN)

fingerprintco-occurrences
AS15557 · Societe Francaise Du Radiotelephone - SFR SA5