A domain name is a name that identifies one or more IP addresses. For example, the domain name microsoft.com represents about a dozen IP addresses. Domain names are used in URLs to identify particular Web pages. For example, in the URL
http://www.webopedia.com/index.html, the domain name is cwebopedia.com.
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. If you come across a registrar that is not on the list, it is most likely that the organization is acting as a reseller for one of the accredited registrars as only an accredited registrar has the capability to modify the database of domain names. The registrar you choose will determine the cost for registering a domain name, but in general expect to pay a yearly fee.
