Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Onsen UI is an open-source HTML5 hybrid app framework offering mobile UI components for PhoneGap and Cordova development.

Discourse is an open-source internet forum and mailing list management software application.

Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.

D3 based reusable chart library

Google Analytics is a free web analytics service that tracks and reports website traffic.

Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.

Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.

Windows Server is a brand name for a group of server operating systems.

ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.

Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.