There are various ways to redirect visitors from one domain/website to another. The so-called URL redirection is often preferred. In contrast to parking a domain name, a URL redirection is possible only if the domain in question is hosted. What this means in simple terms is that you could still open any content in case you have a direct link to it and you could create email addresses or subdomains and use them. This type of function has several practical uses - if you want to switch your domain address, you may forward the traffic, but the e-mails with the old one shall still be active in case you are making contact with clients or partners. When you have two identical websites and you would like to rebuild one of them, you can forward the traffic to the other site so that you can avoid losing potential clients, while you will still be able to access the admin area for the first website and improve it.