Does hosting.com support...
Do you support Varnish?
Varnish is a web application accelerator that uses caching to improve server performance. You can install Varnish on a number of Hosting.com servers!
Varnish Cache (often called simply “Varnish”) is a web application accelerator that uses caching to improve server performance, particularly during periods of increased site traffic.
If you have an unmanaged hosting account, you can install and configure Varnish yourself.