Incapsula is a Security CDN that makes websites safer, faster and helps increase reliability.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Express is a fast, unopinionated, minimalist web framework for Node.js
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient.