What is a Domain Name ?

By | July 13, 2009

What is a Domain Name ?

Computers connected to the Internet have unique numerical addresses so that electronic information is delivered to the right place. The domain name system (DNS) translates the numerical addresses of computers into more user-friendly names. The resulting domain names are easier to remember and help people to find information on the Internet. A name that identifies an IP address is called a Domain Name. Domain names are used in URL’s to identify particular Web Pages. Every domain name has a suffix that indicates which level domain (TLD) it belongs. Domain names are classified into Top Level Domain, Second Level Domain, Third Level Domain & Fourth Level Domain.

  • Top Level Domain : A top-level domain is the highest level of domain names in the root zone of the Domain Name System of the Internet.
  • Second Level Domain : A second-level domain (SLD) is a domain that is directly below a top-level domain (TLD). E.g .co.uk.
  • Third Level Domain : A third level domain is written directly to the left of the second level domain.
  • There can be fourth and fifth level domain.
  • Generic Top Level Domain :  The core group of generic top-level domains consists of the com, info, net, and org domains. In addition, the domains biz, name, and pro are also considered generic, however, these are designated as restricted, because registrations within them are require proof of eligibility within the guidelines set for each.
  • CC-Top Level Domain : A country code top-level domain (ccTLD) is an Internet top-level domain generally used or reserved for a country.