There are 2 services you'll need for a functioning site - a domain name plus a hosting plan for it. When you type the Internet domain in your web browser, you see the content that is uploaded within 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 Internet domain is registered and you're its owner, but it does not have any content of its own. As a substitute, it can open either a pre-made “Under Construction / For Sale” page from the registrar company, or it may be forwarded 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 block a slot for a hosted Internet domain within your account. You can 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 web site in order to protect a brand name.