Subdomain is a domain that is part of a larger domain name in Domain Name System (DNS) hierarchy. A subdomain is a domain that is part of a larger domain. In DNS hierarchy consists of the root-level domain at the top, below that are the top-level domains, followed by second-level domains and finally subdomains. A subdomain expresses relative dependence, not absolute dependence.
How to create a subdomain:
- Visit your Business Control Panel
- Click the ‘Domain Control Panel’ link under your domain name.
- Click the ‘Manage Subdomains’ or ‘Manage Domain and Subdomains’ link.
- Click the ‘Add Subdomain’ or ‘Create Subdomain’ button.
- In the ‘Start at’ field, enter the name of the new subdomain.
- In the ‘Forward to’ field, choose the destination of your subdomain- the directory with which your subdomain will be associated- from the pull-down menu provided. You'll see subdirectories associated with the site you're currently managing.
- Click the ‘Submit’ button.
- You'll see a confirmation message and summary of your subdomain details. Click the Return to ‘Domain Forward Page’ or ‘Return to Manage Subdomains’ button.
Subdomains are commonly used by organizations that wish to assign a unique name to a particular department, function, or service related to the organization. A subdomain is sometimes termed a vanity domain, can be a subdomain of an ISP's own domain also known as to an individual user account or expresses the individuality of the person on whose behalf it is registered.