Domain registration refers to the process of registering a domain name, which identifies one or more IP addresses with a name that is easier to remember and use in URLs to identify particular Web pages. The person or business that registers domain name is called the domain name registrant.

Domain registration requires utilizing the services of a domain name registrar, an ICANN or national ccTLD accredited company that has the authority to register domain names. Registrars help individuals and organizations register a domain name that has an extension like .com, .org, .net, .info, .biz, .us, .mobi, .name, .pro, .tv, etc.

The only way to register and start using a domain name is to use the services of a domain name registrar. The domain name industry is regulated and overseen by ICANN, the organization that is responsible for certifying companies as domain name registrars.

At one time there was only one domain name registrar – Network Solutions, Inc. but today there are dozens of accredited registrars. Only a domain name registrar is permitted to access and modify the master database of domain names maintained by InterNIC. The master database contains the documentation on all of the domain names registered to date.