If you wish to register a domain name to ensure that no one 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 address isn't linked to any web or e-mail hosting service. In this way, you'll be able to protect a brand name, for example, and you will own the domain name in question even though it won't load any content. If you want, you can choose some standard template that the registrar offers, such as For Sale or Under Construction, or you can forward the domain name to a different web address. Your second option is extremely helpful if you own a few domain names, but you want each and every one of them to open the same site. For instance, you could 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 only and the traffic to the other ones is going to be redirected to it.