Edge rule builder

Describe a cache route, see what is inconsistent about it, and take the generated configuration away with you.

Runs in your browser

JavaScript is required

The rule builder generates its output in the browser. With scripting disabled there is nothing to generate it with. The documentation describes every option in plain text.

Route

Where the edge listens and where it pulls from.

Edge hostnameThe hostname visitors request.

Origin hostnameThe server the edge fetches from on a miss.

Origin scheme

Route pathPrefix this rule applies to.

Only answer requests whose Host matches the edge hostname

Caching

How long copies live at the edge and in visitors' browsers.

Static asset TTL (seconds)

Document TTL (seconds)

Browser TTL (seconds)Emitted as max-age to the client.

Query string in the cache key

Query keys to keepComma or space separated. Used only in "listed keys only" mode.

Bypass cache when this cookie is presentLeave blank to cache logged-in responses too.

Request methods

Respect Cache-Control and Expires from the origin Serve a stale copy while the origin is failing

Delivery

What the edge adds on the way out.

Rate limit (requests/s per client IP)0 disables the limit.

Access-Control-Allow-OriginBlank sends no CORS header.

Compress text responses Send Strict-Transport-Security

Review

Checks run locally against the values above.

Not built yetChange any field to build the configuration.

Generated configuration

Produced from the form. Review it before you deploy anything.

Generated text is a starting point, not a reviewed deployment.What each option does

Saved zones

No saved zones

Nothing saved yet. Build a rule and choose Save zone to keep it in this browser.

Stored in this browser only. Clearing site data removes them.How local data is handled