What is the difference between no-cache and no-store?

no-cache permits browsers and CDNs to store the cached response, but requires revalidating with the origin server (using ETag or If-Modified-Since) before serving it. no-store strictly forbids saving any copy of the response to disk or memory.

What does stale-while-revalidate accomplish?

stale-while-revalidate allows the client or CDN to serve an expired cached response immediately while asynchronously fetching an updated version in the background, eliminating user-facing latency.

QuickCoderHub

Online Cache-Control Header Builder & Policy Explainer

Configure HTTP caching policies for browsers, reverse proxies, and CDNs. Learn what each directive does, avoid stale caching bugs, and export Nginx, Apache, and Netlify snippets.

HTTP Caching Best Practices

Efficient caching minimizes server load, reduces CDN bandwidth costs, and eliminates page latency for returning visitors.

Recommended Strategies

Versioned / Hashed Static Assets: Use public, max-age=31536000, immutable. Since modern build tools (Vite, Webpack) embed content hashes in filenames (e.g. app.7f82b.js), files are guaranteed to never change.
HTML Documents: Use no-cache, must-revalidate. Browsers can store the HTML but must ping the origin with an ETag before displaying it, ensuring users always see new deployments immediately.
User-Specific API Payloads: Use private, no-store. Prevents shared intermediate caches and CDNs from storing and leaking confidential user session data.