Custom Cache Key

Last updated Oct 13, 2025Copy as MarkdownView as MarkdownAgent setup

Note

If you are migrating from Page Rules and you want to keep Page Rules behavior, you need to create two specific rules before creating this rule. For more details refer to Migration from Page Rules.

Create a cache rule to set a custom cache key for all query string parameters, for any hostname containing example.com:

When incoming requests match: Custom filter expression
- Using the Expression Builder:
  Hostname contains "example.com"
- Using the Expression Editor:
  (http.host contains "example.com")
Then:
- Cache eligibility: Eligible for cache
- Setting: Cache key
  - Query string: All query string parameters

Refer to cache keys for more information on possible settings when configuring a custom cache key.

PreviousCache TTL by status code NextEdge Cache TTL

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