Netlify caching

Cache-control header to reach for

Dynamic responses (Functions, Edge Functions, proxies) are NOT cached by default — you must opt in. Set Netlify-CDN-Cache-Control on the response:

import type { Context } from "@netlify/functions";

export default async (req: Request, context: Context) => {
  return new Response("Hello world", {
    headers: {
      'Netlify-CDN-Cache-Control': 'public, durable, max-age=60, stale-while-revalidate=120'
    }
  });
};