- Dev Build
- Local Server
- HMR = Hot Module Replacement
- File watching algorithm - written in C++
- Caching - Faster Builds
- Image Optimization
- Minification
- Bundling
- Compress
- Consitent Hashing
- Code Splitting
- Diagnostic
- Error Handling
- Differential Bundling - support older browsers
- Tree shaking - remove unused code
- HTTPs
