A link in the back-end that allow you to see what the front-end would look like while you’re still working in the back-end.
A user level on a Joomla site that is the same a Public except for the Allow permission for the Site Login action. This means members of this group have access only to the front-end access to the site. Should you wish it, a registered user is able to see additional content to that seen by casual visitors to your site.
