Here we see a subdomain, domain, and subdirectory being used: This usually comes before your domain and shouldn’t be confused with a subdirectory that comes after the domain. They are primarily used to manage site areas that are extensive enough to require their own hierarchy, such as online stores, blogs or support platforms.”Ī subdomain is what differentiates your main domain name from the various sections that make up your website. “Subdomains are a prefix added to your domain name in order to help navigate and organize sections of your website. Here’s a brief definition from website builder platform Wix: So, now we’ve cleared up what we mean by the term ‘domain’, what do we mean by the term subdomain? You can learn more about what a domain name is by reading our guide: What is a Domain Name? A Beginner’s Guide This is usually your website or business name, followed by a domain ending or ‘top-level domain’ such as. Your domain name is basically what you need to type into your internet browser to get to your website. Before we dive into defining what we mean by the term ‘subdomain’, let’s first be clear on what we mean by the term ‘domain’ in the context of a website.