Regex Tester & Validator

This regular expression matches specific domain names associated with Kaspersky update and download servers, including endpoints for certificate revocation lists (CRL), OCSP, and general updates. It allows for dynamic prefixes such as geographic distribution nodes (e.g., dnl-00.geo) and numbered download servers. The regex is anchored to match the entire string and uses the case-insensitive flag, making it ideal for validating network traffic logs, firewall rules, or proxy configurations to safely identify Kaspersky infrastructure.