Split-Horizon DNS allows the same domain name to return different DNS responses depending on where the request comes from. Internal users can receive private network addresses, while external visitors receive public-facing records. This approach improves security, simplifies network management, and helps organizations keep internal resources inaccessible from the public Internet. It is especially useful for corporate networks, VPN environments, and hybrid infrastructures. Read the full article to discover how Split-Horizon DNS works and when to use it.