What is “Cloudapp.net”?
23 Mar
We’ve received a couple of emails lately asking “what is Cloudapp.net, I keep seeing it in URLs but I can’t find any information about it?”. Well, we’ve done our research for you.
It is part of Microsft’s Azure Cloud service which ‘provides developers with on-demand compute and storage to host, scale, and manage web applications on the internet through Microsoft® datacenters.’
More information on this service can be found here.

Thanks. I was having the same question as well!