TCP SYN (p0f)

4:50+14:0:1460:65535,14:mss,sok,ts,nop,ws:df,id+,ecn:0

first seen 2026-06-18 18:57 · last seen 2026-06-20 03:12 · JSON

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1460
Window size65535
Window scale14
Options layoutmss,sok,ts,nop,ws
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
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.5.0, php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.15

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn070000_475aaf807767_000000000000_00000000000015

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog.15

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)15

Country

fingerprintco-occurrences
CA · Canada9
GB · United Kingdom6

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS15