For highest flexibility, performance and high availability (100%) onverify.com moved to amazon platform. We currently use DNS, CDN, ELB, EC2 technologies for www.onverify.com.
On the API and service side, nothing needed to be changed. Only side-effect is you must check the REST style requests to fully obey http protocol. Amazon platform actively rejects invalid http requests. A simple example is, your REST style request cannot include any space character.