If you'd like to register a domain name to make certain that nobody else is going to take it, but you have not built the site for it yet, you can park it. This is a service that registrar companies provide whenever a domain isn't linked to any web or e-mail hosting service. In this way, you can protect a brand name, for example, and you'll own the domain address in question even though it won't load any content. If you wish, you can pick some default template that the registrar offers, such as For Sale or Under Construction, alternatively you can forward the domain to an alternative web address. The second option is very useful if you own a few domains, but you want all of them to open the same site. For instance, you may register domain.net and domain.org, then park them and direct them to domain.com. In this example, you are going to need hosting for the third domain name only and the traffic to the other ones will be redirected to it.