A domain name functions as the human-readable address used to locate and access websites on the internet, replacing the complex numerical Internet Protocol addresses that computers use to communicate with each other. Structurally, a domain consists of distinct parts, including a top-level domain extension like .com, .org, or .net, and a second-level domain name that typically represents a brand, organization, or personal identity. When you type a web address into a browser, the Domain Name System acts as a global directory that automatically translates that text string into the correct numeric server destination, allowing your browser to load the requested web pages seamlessly. Beyond websites, domains are also utilized to establish professional email addresses, configure custom network routes, and organize digital infrastructure across the web.