There are two separate services you'll need for a functioning website - a domain plus a hosting plan for it. Whenever you type the domain name in your web browser, you see the content that is uploaded in the web hosting account, but if that domain isn't linked to such an account or to an email service, it is parked. In other words, the domain address 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” Internet page from the registrar company, or it can be forwarded to any other URL of your choice. The main benefit of parking a domain address is that you can keep it and ensure that nobody else is going to take it. In the meantime, it won't block a slot for a hosted domain address within 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 as a way to protect a brand name.