There are 2 services you'll need for a working web site - a domain plus a web hosting plan for it. If you type the Internet domain in your Internet browser, you see the content that is uploaded in the website hosting account, but if that domain isn't linked to such an account or to an email service, it's parked. In other words, 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” webpage from the registrar company, or it may be directed to some other URL of your choice. The advantage of parking a domain name is that you can keep it and ensure that nobody else is going to take it. Meanwhile, it will not occupy a slot for a hosted Internet domain within your account. You may also park domains if you have a .com, for instance, and you register domains 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.