A subdomain, sometimes called a third-level domain, is a great way to create a memorable web address for a section of your website. Note: Subdomains are available only in Web Hosting, Merchant Solutions, and WordPress hosting plans.
Your domain is a folder that contains your site files; a subdirectory is a folder contained within this main folder (such as http://www.your-site-here.net/subdirectory1). A subdomain, on the other hand, is basically an alias; another address that can be created for one of your subdirectories. An Internet user can enter the subdomain in his browser's address bar to view the subdirectory with which it's associated.
A subdomain combines a unique identifier with a domain name to become essentially a domain within a domain. The unique identifier simply replaces the www in the web address. Yahoo, for example, uses subdomains such as mail.yahoo.com and music.yahoo.com to reference its mail and music services, under the umbrella of www.yahoo.com.
For another example, a website selling cars might use subdomains to organize the site into sections like chevy.mycars.com, ford.mycars.com, etc.
The table below shows the structure of a subdomain:
| http:// | subdomain | . | domain | . | com |
| 3rd level | | 2nd level | | 1st level | |
You can create subdomains for your website in your Domain Control Panel. If your subscription includes cPanel, subdomains should be added from within cPanel. You can learn how to create subdomains for all eligible subscription types here.
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