If you'd like to register a domain name to make sure that nobody else is going to take it, but you have not built the web site for it yet, you could park it. That is a feature that registrar companies provide when a domain is not connected to any web or email hosting service. This way, you'll be able to protect a brand name, for instance, and you will own the domain in question although it will not load any content. If you wish, you may choose some standard template that the registrar offers, such as For Sale or Under Construction, alternatively you can forward the domain to a new web address. Your second option is extremely helpful in case you own a number of domains, but you want each and every one of them to open the same site. As an illustration, 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 only and the traffic to the other ones will be redirected to it.