Netlify has partnered with Name.com to offer domain names in its all-in-one platform. This integration allows users to purchase domains and set up DNS automatically, including free SSL through Let's Encrypt. Understanding the Domain Name System (DNS) is crucial for harnessing online computing capabilities, as it translates human-readable domain names into IP addresses that computers can understand. Key components of DNS include top-level domains (TLDs), second-level domains (SLDs), nameservers, and DNS records, which serve different purposes such as pointing to hosting providers, mail servers, and text records for security and privacy. Netlify's integration with Name.com simplifies DNS setup and configuration, allowing users to take full control of their online presence without getting lost in the details.