- Domain names are used as a networking concept with addressing and application purpose.

- The domain name is used to represent the Internet Protocol (IP) that provides the resources for the personal computer to allow the accessing of the internet.

- Domain names are represented from the subordinate level and also called as sub-domains that are under the root domain.

- There are three levels of domain names:

- Top level domains are used at the top of the hierarchy and provide a way down to the lowest level in the hierarchy.

- This consists of gTLDs are also known as generic top-level domains and used for very generic domain names like .com, .net and .org.

- This consists of ccTLD are also known as code top-level domains and used to provide code domains.