If you want to register a domain to make sure that no one else will take it, however, you haven't created the site for it yet, you can park it. That is a service that registrar companies offer when a domain address isn't connected to any web or e mail hosting service. By doing this, you can protect a brand name, for example, and you will own the domain address in question even though it will not open any content. If you would like, you can choose some standard template that the registrar offers, such as For Sale or Under Construction, you can also direct the domain name to a new web address. The second option is extremely helpful if you own a few domain names, but you want all of them to open the same site. As an example, you may register domain.net and domain.org, then park them and forward them to domain.com. In this example, you'll need hosting for the third domain name only and the traffic to the other ones will be redirected to it.