If you want to register a domain to ensure that nobody else is going to take it, but you haven't created the website for it yet, you could park it. That is a feature that registrar companies provide when a domain is not linked 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 name in question even though it will not load any content. If you would like, you can choose some standard template that the registrar offers, such as For Sale or Under Construction, alternatively you can forward the domain name to another web address. The second option is extremely helpful in case you own a number of domains, but you want all of them to open the same website. For example, you can register domain.net and domain.org, then park them and direct 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.