If you want to register a domain to ensure that nobody else is going to take it, but you haven't created the site for it yet, you can park it. It's a feature that registrar companies offer if a domain name is not connected to any web or e mail hosting service. In this way, you'll be able to protect a brand name, for instance, and you'll own the domain address in question although it won't open any content. If you'd like, you can pick some default template that the registrar provides, like For Sale or Under Construction, you can also forward the domain to a new web address. The second option is extremely helpful if you own a number of domain names, but you want each and every one of them to open the same website. For example, you may register domain.net and domain.org, then park them and forward them to domain.com. In this example, you will need hosting for the third domain address only and the traffic to the other ones will be redirected to it.