Everything you need to know about HTTP Caching - YouTube

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