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What is a subdomain?

A subdomain is one way of organizing and separating content on your site. You're already familiar with the concept of subdomains, even if you don't know it. Consider OU's public Web site at

As you browse parts of that site, you'll notice that the domain changes. When you're looking at your department Web site, say the site for the Chemistry & Biochemistry Department at, the URL is no longer just Now the root of the url is, indicating that you're on the part of the site that is dedicated to the Chemistry & Biochemistry Department.

If you browse to the technology store pages at, you'll notice that the domain changes again, this time indicating that you're in the technology store of the OU site.

As you can see the domains serve two purposes: they help to organize the site from a technical perspective, but they also serve as indications to the users that they are in a new/different space. As you work on your site, you're welcome to create as many subdomains as you like, and in each subdomain you can actually create a distinct, individual Web site.

Additionally, we have resources that demonstrate setting up subdomains and illustrate the difference between subdomains and subdirectories.

Video Tutorial & Ideas

domain-management/what-is-a-subdomain.txt · Last modified: 2015/01/19 14:01 by keeganslw