JA4 TLS client fingerprint
t13i1909h1_9dc949149365_97f8aa674fd9
Seen 2026-02-19 to 2026-06-04 across the retained window.
264
Source IPs
3
Networks
4
Countries
937
Ports hit
80.7K
Events
88
IPs / network
This fingerprint is concentrated: many addresses on very few networks, which is what a single coordinated operation tends to look like.
Top networks
Countries
US 258NL 2SG 2CA 2
Source IPCCNetworkEvents
About this fingerprint
JA4 is a fingerprint of the TLS Client Hello: the version, cipher suites, extensions and signature algorithms a client offers when it opens an HTTPS connection. Clients built on the same library and version produce the same JA4, which makes it a durable handle on the tool behind the traffic.