← Saturday, September 26, 2026Cloud & infraRelease
Cloudflare Cache Rules add controls for Vary-based cache entries
Cache Rules can normalize selected request headers, pass their exact values through, or bypass caching when Vary creates too many distinct entries. These controls address the trade-off between serving correct responses and keeping caches reusable.
- What
- The HTTP Vary header tells intermediary caches which request fields may affect a response for a URL.
- How
- Cloudflare Cache Rules let operators normalize selected headers, pass exact values through or bypass caching when variation is unpredictable.
- Why it matters
- These controls can prevent incorrect cache responses while avoiding needless fragmentation into barely reusable entries.
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