In short
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).
More topics at this stop
Stuck on this topic? Ask an Insider
Get 1:1 guidance from people who've walked this exact path — on the InsideEdge app.
