TCP SYN (p0f)

4:50+14:0:1430:mss*45,0:mss,nop,nop,sok:df,id+:0

first seen 2026-08-20 23:38 · last seen 2026-08-20 23:38 · JSON

Distinct clients per day (last 30 days, peak 1/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 TTL50+14
Options length0
MSS1430
Window sizemss*45
Window scale0
Options layoutmss,nop,nop,sok
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
t13d1515h2_1f9c1ec88692_a54fffd0eb6124

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr13enus_016d87568c43_000000000000_00000000000024

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:139264;2:0;4:121760;5:16384|12517377|3:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|5:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|7:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|11:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|13:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|15:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|17:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|19:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|21:0:0:42|m,p,a,s1
1:139264;2:0;4:121760;5:16384|12517377|23:0:0:42|m,p,a,s1

TCP SYN (JA4T)

fingerprintco-occurrences
64350_2-1-1-4_1430_0024

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/537.3624

Country

fingerprintco-occurrences
CA · Canada24

Network (ASN)

fingerprintco-occurrences
AS5645 · TekSavvy Solutions, Inc.24