In case you have several domain names with different extensions and you need all of them to open precisely the same Internet site, you could have the site under one of them and redirect the rest. There are various ways to redirect one domain to another, among them the so-called domain parking. When your website hosting package deal allows it, though, it'll be better if you host all the domains and create a URL redirect, not a domain redirect. The difference between the two is that while a domain is hosted, you may still have content for it, set up subdomains, e mail addresses, and many others., while with a parked domain it's not possible to do any of these things. For instance, if you're building localized websites under different country-code domain names, you'll be able to work on them, but at the same time, people will be forwarded to the primary site.