A mobile redirect is a small piece of code that gets installed on your desktop site. It will check every visitor that comes to your site and redirect them if they're a mobile user. This is the most important part of setting up your site, as it is how most of your mobile visitors get to your mobile site.
The mobile redirect checks the User Agent of each visitor coming to the desktop site. If the visitor is detected as a mobile visitor, the redirect code will send them to the mobile website. If they're not a mobile device, it will leave them on the desktop site.
This code should only need to be installed once on your desktop site, once in place you can continue to update your mobile site as much as you like without needing to update the redirect code.
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