If you'd like to register a domain to ensure that no one else will take it, but you haven't created the site for it yet, you can park it. It's a feature that registrar companies provide if a domain address isn't connected to any web or e-mail hosting service. That way, you'll be able to protect a brand name, for example, and you'll own the domain address in question although it will not open any content. If you would like, you can choose some default template that the registrar provides, like For Sale or Under Construction, alternatively you can direct the domain name to a new web address. The second option is very useful in case you own a number of domains, but you want all of them to open the same website. As an illustration, you could register domain.net and domain.org, then park them and forward them to domain.com. In this example, you're going to need hosting for the third domain address only and the traffic to the other ones will be redirected to it.