There are two services you'll need for a functioning web site - a domain name and a website hosting plan for it. When you type the domain name in your web browser, you see the content that’s uploaded within the hosting account, but if that domain is not linked to such an account or to an e-mail service, it's parked. In other words, the domain is registered and you're its owner, but it lacks content of its own. As a substitute, it can open either a pre-made “Under Construction / For Sale” webpage from the registrar company, or it may be directed to some other URL of your choice. The benefit of parking a domain is that you can keep it and ensure that no one else is going to take it. In the meantime, it will not occupy a slot for a hosted Internet domain in your account. You could also park domain names if you have a .com, for instance, and you register domain addresses with other extensions like .net, .org or country-code ones to forward them to the main website as a way to protect a brand name.