A domain name is an identification string which gives definition to a realm of administrative autonomy or control over the Internet. In simpler terms, it can be thought of as a distinct chunk of the Internet with addresses that share a common suffix or are managed by a particular organization or any individual. Domain names need to follow the rules and regulations of the Domain Name System (DNS).

Any name that is registered under the DNS is a domain name. The purpose of a domain name is to help identify a particular resource on the internet with a text-based label which is much easier to keep...