A domain name is a unique, human-readable text string that is associated with an Internet Protocol (IP) address. It is used to identify and locate a website on the Internet. The main purpose of a domain name is to make it easier for people to access websites, by using a memorable and easy-to-type text string rather than having to remember a series of numbers.
For example, when you type "www.example.qa" into your web browser, your computer uses the Domain Name System (DNS) to translate the domain name into the IP address of the server where the website is hosted. This allows you to access the website without having to remember the numerical IP address.
In addition to making it easier for users to access websites, domain names are also used for branding and marketing purposes. A domain name can help establish a website's identity and make it easier for users to remember and find the site. Domain names can also be used to create email addresses and other online identities.