In case you have several domains with different extensions and you need all of them to open precisely the same site, you can have the website under one of them and redirect the others. There are a number of approaches to redirect one Internet domain name to another, such as the so-called domain parking. When your hosting package deal allows it, though, it'll be better if you host all the domains and set up a URL redirect, not a domain redirect. The real difference between the two is that while a domain name is hosted, you may still have content for it, create subdomains, e-mail addresses, etc., while with a parked domain you cannot do any of those things. As an example, if you're building localized Internet sites under different country-code Internet domain names, you will be able to work on them, but at the same time, people will be forwarded to the primary Internet site.