If you have a lot of domain names with different extensions and you need all of them to open exactly the same site, you could have the site under one of them and redirect the others. There are different ways to forward one Internet domain name to another, such as the so-called domain parking. When your website hosting package allows it, though, it will be better if you host all of the domains and create a URL redirect, not a domain redirect. The main difference between the two is that while a domain is hosted, you can still have content for it, set up subdomains, e mail addresses, and so forth., while with a parked domain you cannot do any of those things. For instance, if you're building localized sites under several country-code domains, you will be able to work on them, but meanwhile, people shall be redirected to the primary Internet site.