There are many ways to forward traffic from one domain/website to another. The so-called URL redirection is frequently recommended. In contrast to parking a domain address, a URL redirection is possible only if the domain name in question is hosted. What this means essentially is that you could still open any content in case you have a direct link to it and you could create e-mail addresses or subdomains and use them. This kind of function has numerous practical uses - if you decide to switch your domain name, you may forward the visitors, but the e-mail messages with the old one will still be active if you are making contact with customers or partners. In case you have 2 similar websites and you want to rebuild one of them, you could forward the traffic to the other site to avoid losing potential clients, while you shall still be able to access the admin area for the first website and develop it.