The site is hosted between 2 cloud providers, DigitalOcean and Microsoft Azure.
DigitalOcean provide fast SSD based hosting from multiple locations around the world. Their virtual servers, called Droplets, are highly flexible and are what report-uri.io is built on. We use Ubuntu and NginX on our load balancer that then proxies requests to several application servers behind it also running Ubuntu, NginX and PHP.
Microsoft Azure offers many services and report-uri.io leverages the scale and performance of Table Storage, a NoSQL key-value store that allows for massive datasets. Without having to worry about sharding, storage capacity or throughput, report-uri.io can scale on demand to suit our needs.