A subdomain is the part of the web address which is before a domain name and you've probably seen a lot of subdomains while surfing around the Web. As an illustration, many websites such as Wikipedia have versions in various languages using subdomains - en.wikipedia.org, de.wikipedia.org etc. The main advantage of using a subdomain is that it can have a separate site and its own records, so you can even host it on a separate server. The practical use is that one could have a supplementary site, such as an e-learning portal for pupils aside from the primary school website. If you use subdomains instead of subfolders, it'll be much easier to perform maintenance or to upgrade a particular site, not mentioning that it's going to be more secure to have the websites separate from one another.
Subdomains in Semi-dedicated Servers
Our semi-dedicated plans don't have a limit for the amount of subdomains that you can create. Adding a new subdomain in the account takes just a few mouse clicks in the Hepsia web hosting CP and during the process you can select the folder the subdomain will access if it is going to be different from the default one, set up customized error pages, activate FrontPage Extensions if you need them or create a dedicated IP address as opposed to the shared server one provided you have added this upgrade to your semi-dedicated account. After the subdomain is created, you can access logs and visitor stats or you can quickly jump to the site files for it within the File Manager section through fast access buttons. All subdomains that you have inside the account are going to be conveniently listed under their root domain, so you're going to be able to find and manage any one of them effortlessly.