Types of Web Caching
- Browser Cache - Stores resources locally on the user's device
- CDN Cache - Stores content on edge servers close to users
- Server Cache - Application-level caching (Redis, Memcached)
- Database Cache - Query result caching
Cache-Control Header Strategies
The Cache-Control header is your primary tool for controlling caching behavior. Use immutable for versioned static assets, no-cache for dynamic content that must be revalidated, and stale-while-revalidate for content that can briefly be stale.