JA4 TLS client fingerprint
t13i871000_c66346c74e42_24695f2957a7
Seen 2026-02-23 to 2026-09-22 across the retained window.
The feed is a URL your firewall, MISP or SIEM polls; it needs a free account so it can be revoked. Or watch the top network: AS14061 sends an email when it next hits a sensor.
27
Source IPs
4
Networks
3
Countries
4
Ports hit
33
Events
7
IPs / network
Top networks
Unattributed1 IPs2
Countries
US 23CA 3NL 1
Ports targeted
What it requests
User agents claimed
9router/1.01 IPs7
Source IPCCNetwork
Last seenEvents
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.