HTTP Caching Headers

Summary

Response headers (`Cache-Control`, `ETag`, `Last-Modified`) that tell browsers and CDNs how and whether to cache a response, without needing any custom caching infrastructure.

How to Learn This

1Set appropriate `Cache-Control` headers on a few different types of endpoints.
2Implement `ETag` support so clients can avoid re-downloading unchanged data.
3Learn the difference between `no-cache` (revalidate) and `no-store` (never cache).

Write-Through vs Write-Behind

Unit Testing

More topics in Caching

Caching Fundamentals Redis for Caching In-Memory Caching CDN Caching Cache Invalidation Strategies Cache-Aside Pattern Write-Through vs Write-Behind

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