netlify-caching

Controls how Netlify's CDN caches responses from functions, edge functions, and static assets. Covers Cache-Control header configuration, stale-while-revalidate patterns, durable cache for serverless functions, cache tag assignment, and on-demand purge via the Netlify Functions API. Netlify uses separate cache layers with distinct headers for CDN vs browser, and getting this wrong either over-caches dynamic data or bypasses the CDN entirely — this skill maps out exactly which header controls which layer.