A domain name is the address that helps people finds your website online. It is what you usually type in your browser's address bar to visit a specific website or location on the Internet. Just as homes and offices have addresses, all websites have a unique domain name.
You need a domain name to ensure your website has its own special address on the web. For example, the D-Sign infosystems! Domain name is dsigninfo.co.in . The name after http://www which you see in address bar of your internet browser is Domain name it is a unique address that can be used on the Internet.