There are two separate services that you’ll need for a functioning site - a domain and a hosting plan for it. Any time you type the domain in your browser, you see the content that is uploaded in the website hosting account, but if that domain address isn't linked to such an account or to an email service, it's parked. To put it differently, the domain address 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” Internet page from the registrar company, or it could be directed to some other URL of your choice. The advantage of parking a domain address is that you can keep it and make certain that nobody else is going to take it. Meanwhile, it will not occupy a slot for a hosted Internet domain in your account. In addition, you can park domains if you have a .com, for instance, and you register domains with other extensions like .net, .org or country-code ones to direct them to the main website in order to protect a brand name.