Everything you need to know about HTTP Caching - YouTube:
Benefits for cache
- Reduced latency
- Cut down the bandwidth
- Reduced load on the server
Cache location
- Browser cache
- Proxy cache
- Revered Proxy cache (Server side)
Cache types
- Stale Content
- Fresh Content
Cache actions
- Cache validation
- Cache invalidation
How does the content get cached?
- HTTP Headers
- cache headers: cache-control (expires, pragma)
- Validators: etag, if-none-match, last-modified, if-modified-since
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