# Proxied responses now cacheable via CDN-Cache-Control headers

By Steven Van · 2025-05-13

Vercel's CDN now caches proxied responses from external backends using CDN-Cache-Control headers, on all plans at no extra cost.

Vercel's CDN can now cache responses proxied to external backends using the **CDN-Cache-Control** and **Vercel-CDN-Cache-Control** headers, matching how [Vercel](<https://creatorstoolbox.com/tools/vercel>) already caches responses from its own Functions.

The headers follow the Targeted HTTP Cache Control spec (RFC 9213) and support directives like max-age and stale-while-revalidate, giving fine-grained control over CDN caching without touching browser caching. A backend can return the headers directly, or they can be set in vercel.json under the headers key if the backend can't be modified. The [change](<https://vercel.com/changelog/proxied-responses-now-cacheable-via-cdn-cache-control-headers>) is live now on all plans at no extra cost, with no configuration changes or redeployments required to take effect.

[![](<https://assets.vercel.com/image/upload/contentful/image/e5382hct74si/4Y0IrJbE1B0mkNyNj77Js8/0f674ebe4066e12b743d28e74b8d5f55/CDN_Headers_-_Light.jpg>)](<https://vercel.com/changelog/proxied-responses-now-cacheable-via-cdn-cache-control-headers>)

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[Original source](<https://vercel.com/changelog/proxied-responses-now-cacheable-via-cdn-cache-control-headers>)

[Read Proxied responses now cacheable via CDN-Cache-Control headers on Creators Toolbox](<https://creatorstoolbox.com/blog/vercel-proxied-responses-now-cacheable-via-cdn-cache-control-headers>)

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Canonical source: https://creatorstoolbox.com/blog/vercel-proxied-responses-now-cacheable-via-cdn-cache-control-headers