Regex Editor & Tester

This regular expression is designed to match specific ESET repository and content delivery network (CDN) domain names. It captures various hostnames including regional (US), non-CDN, and specific numbered repository servers (like h1, h3, h5) as well as specific IP pointer records ending in `eset.com`. This regex is highly specific and useful for network monitoring, DNS filtering, or endpoint detection and response (EDR) systems to track ESET update traffic.