Audience Domain Redirection
The Microsoft URL Rewrite Module 2.0 for IIS 7 and above can be used to redirect to the desired domain based on the audience system name in the file path. This IIS module is not installed by default so you'll have to download and install it on the server before you begin: http://go.microsoft.com/?linkid=9722532.
Once the module is installed it will be included as "URL Rewrite" in the IIS area of each site in IIS. Double click URL Rewrite to view your rules. To create an audience domain redirection rule click "Add Rule" and select the Blank Inbound rule template. Then configure the rule using the settings below replacing 'Main' with your audience's system name and 'dev.xodev00.com' with your domain. This can be repeated for each audience in the site which should only load in a specific domain.