This graphic shows the excerpts of the Site Definitions and Site-to-Server Mapping pages. The Site Definitions page shows two definitions:
www.providersite1.com, port 80 with an alias of providersite1.com, port 80
www.providersite2.com, port 80 with an alias of providersite2.com, port 80
The Site-to Server-Mapping page shows site host name www.providersite1.com, port 80 with ESI Content Policy Fragments Only mapped to proxy server proxy-host, port 80.