At this point, you have a website that is up and running. Some students may want to create multiple sites that appeal to different audiences or sometimes an instructor will require you to post something to a website as part of an assignment. When you want to create a separate site without registering a whole new domain, create a subdomain. In fact, support.musites.org is a subdomain. Other examples of subdomains include finance.yahoo.com, docs.google.com, drive.google.com, and documentation.cpanel.net/.
With those examples in mind, a subdomain enables you to add a word or two in front of your main domain name in order to create a URL that links to an entirely different designed page. Applying this to your situation, if you wanted to create a couple differently-themed blogs, you could call one sports.myblogname.com and another one food.myblogname.com. Creating subdomains within your existing website is a great way to branch out and address different audiences and topics without drastically changing your existing site.
Creating a Subdomain
4. A confirmation message appears when your subdomain is created. Your new subdomain doesn’t have a CMS installed. You need to install a CMS in order to add content to the subdomain.