App Performance
- Worker Dynos, Background Jobs and Queueing
 - Scheduled Jobs and Custom Clock Processes
 - Using AWS S3 to Store Static Assets and File Uploads
 - HTTP Caching
 - Optimizing Dyno Usage
 - Increasing Application Performance with HTTP Cache Headers
 - Compressing HTTP Messages with Gzip
 - Getting the Most Out of Memcache
 - Using Amazon CloudFront CDN