Regex Tester & Validator

This regular expression matches specific domain names associated with Kaspersky Security Network (KSN) infrastructure over TLS. It targets domains ending in `-geo.kaspersky-labs.com` and filters for specific subdomains like `ksn-file`, `ksn-url`, `ksn-verdict`, `ksn-info`, or `ksn-cinfo`, as well as peer-to-peer (`a-p2p`) and statistics (`a-stat`) endpoints. It is highly useful for network monitoring, firewall rules, or threat hunting to track or allow Kaspersky endpoint telemetry traffic.