The Domain Name System (DNS) is a fundamental component of the Internet, enabling computers to locate websites. Ensuring DNS availability is critical for companies as a single network can become vulnerable to malicious attacks, such as Distributed Denial of Service (DDoS). Netlify has introduced a premium DNS redundancy feature for Enterprise customers, providing an additional set of DNS servers isolated from its main network, ensuring domain name resolution and providing an extra layer of resilience. This feature is easily managed through Netlify's DNS management, automatically synchronizing information across both networks.