✨Cloudflare Adds Cache Response Rules for Fine-Tuned Caching
Fine-tune your cache with Cloudflare's new rules engine
TL;DR
Cloudflare now offers Cache Response Rules, letting users tweak caching behavior after origin responses but before content is cached. This feature simplifies CDN migrations and improves cache hit rates without changing the origin application.
Cloudflare just introduced Cache Response Rules, a new rules engine that operates on response attributes rather than requests. This means you can now modify headers like Cache-Control directives and strip Set-Cookie, ETag, and Last-Modified headers after an origin server responds but before content is cached. Why does this matter? It gives teams more control over caching policies at the edge, reducing origin load and improving cache hit rates without touching your application code. The feature supports three actions: removing headers that interfere with caching, managing cache tags, and modifying Cache-Control directives. Available across all Cloudflare plans.

Key Points
Cache Response Rules operate after the origin server responds and before content is cached, enabling fine-tuned control.
The feature allows users to modify Cache-Control directives, manage cache tags, and strip headers like Set-Cookie, ETag, and Last-Modified.
Available across all Cloudflare plans, this enhancement simplifies CDN migrations by allowing modifications without origin changes.
Improving cache performance often comes down to optimizing response behavior rather than adding more infrastructure.
Cache Response Rules do not replace Cache Rules but provide additional control over caching policies at the edge.
Why It Matters
If you're managing a CDN with Cloudflare, this is a game-changer. The ability to tweak cache-related headers and manage tags without altering your origin application simplifies migrations and optimizes performance. For instance, if you're using Cloudflare's Enterprise plan for high-traffic sites, Cache Response Rules can significantly reduce the load on your origin servers by managing caching policies at the edge.
Frequently Asked Questions
Why does this matter?
If you're managing a CDN with Cloudflare, this is a game-changer. The ability to tweak cache-related headers and manage tags without altering your origin application simplifies migrations and optimizes performance. For instance, if you're using Cloudflare's Enterprise plan for high-traffic sites, Cache Response Rules can significantly reduce the load on your origin servers by managing caching policies at the edge.
What happened?
Cloudflare now offers Cache Response Rules, letting users tweak caching behavior after origin responses but before content is cached. This feature simplifies CDN migrations and improves cache hit rates without changing the origin application.
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