How can the customer identify you?
How the customers know that is you?
Domain Name shall be the way customer can look for you through giant network of internet.
Now let us have a look of what is domain name.
In a simple explanation the Domain Names are used to identify one or more IP addresses.
The Domain Name is a unique set of characters that identifies a specific website, it can use in URLs to identify particular Web pages. In other word, a Domain Name has the same relationship to a website as a street address to a house or a name to a person.
By the way of enter a domain name into web browser, the browser will access a domain name server (DNS) to find the location of the corresponding website on the internet, it will retrieve the website and display it to customer. Just a little like look for someone through a phone book to find out how to call them or where the house of their target place is.