Registering a domain name does not automatically activate a website that displays when visitors enter your domain name into a Web browser. The domain name must have a hosted website that includes a numeric address, called an IP address, for visitors to access the website using your domain name.Your domain name and its associated IP address are stored in a common database along with every other domain and associated IP address that are accessible via the Internet.
When visitors enter your domain name into a web browser, the browser request uses your domain name to find the domain name's associated IP address and, therefore, the website. People use domain names instead of IP addresses because it is easier to remember a name rather than a series of numbers.