There are two separate services that you need for a functioning web site - a domain name plus a website hosting plan for it. When you type the domain in your Internet browser, you see the content that’s uploaded within the website hosting account, but if that domain address isn't linked to such an account or to an e-mail service, it is parked. Put simply, the domain is registered and you're its owner, but it lacks content of its own. Rather, it can open either a pre-made “Under Construction / For Sale” page from the registrar company, or it can be forwarded to any other URL of your choice. The main advantage of parking a domain name is that you can keep it and be sure that nobody else will take it. At the same time, it won't take a slot for a hosted domain in your account. In addition, you can park domain names if you have a .com, for example, and you register domain names with other extensions such as .net, .org or country-code ones to forward them to the main site in order to protect a brand name.