Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
memcached - High-performance, distributed memory object caching system
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
KeyCDN - KeyCDN is a high-performance Content Delivery Network (CDN). Lowest price globally at $0.04/GB with HTTP/2 Support and free Origin Shield.