Your hosted Carpool application resides on a Prosentient server which sits outside your corporate network.
The URL of your patron-facing Carpool site is in the form http://yourcarpool.easycarpool.com.au while the form of the URL of the back-end Administration portal is http://yourcarpooldev.easycarpool.com.au/admin_index.php.Corporate subdomain for Carpool application
While your Carpool application can always be reached by the default URLs (above) it is straightforward, if required, to set up your own virtual URLs for your sites. For example, if you are running an organisation-based carpool you may prefer to have your patrons visit http://carpool.yourdomain.com.au.
This requires your IT department to put the CNAME entries for your corporate virtual URLs in their Domain Name Server pointing to the names of the corresponding Prosentient servers as described above.