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Rules examples

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Create a rule in the dashboard

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Rewrite URLs

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Add a request header for subrequests from other zones

Add a request header with the current bot score

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Add request header with a static value

Normalize encoded slashes in URL path

Remove a request header

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Rewrite blog archive URLs

Rewrite image paths with several URL segments

Rewrite page path for visitors in specific countries

Rewrite path for object storage bucket

Rewrite path of archived blog posts

Rewrite path of moved section of a website

Rewrite URL query string

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Perform mobile redirects

Redirect admin area requests to HTTPS

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Redirect local visitors to specific subdomains

Redirect requests for a domain to a new domain

Redirect requests from one country to a domain

Redirect requests from one domain to another

Redirect requests to a different hostname

Redirect visitors to a new page URL

Remove locale from URL path

Origin Rules

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Change the destination port

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Change URI path and Host header

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Route /images to an S3 Bucket

Route /images to an S3 Bucket using Terraform

Send EU visitors to a Google Cloud Storage bucket

Serve /static-assets from Azure Blob Storage

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Disable Brotli compression

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Rules examples

Last updated May 20, 2026|Copy as Markdown|View as Markdown|Agent setup

Explore the following A code example illustrates how to use a programming element to implement specific functionality
" class="glossary-tooltip" tabindex="0" data-astro-cid-hklyqugd>examples for Rules.

Note

We have a separate listing for Cache rules examples.

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Route /images to an S3 Bucket using Terraform

Route requests with a URI path starting with /images to a specific AWS S3 bucket with Cloud Connector using Terraform.

Route /images to an S3 Bucket

Route requests with a URI path starting with /images to a specific AWS S3 bucket using Cloud Connector.

Send EU visitors to a Google Cloud Storage bucket

Route all traffic from EU visitors to a Google Cloud Storage bucket using Cloud Connector.

Serve /static-assets from Azure Blob Storage

Route requests with a URI path starting with /static-assets to an Azure Blob Storage container using Cloud Connector.

Disable Brotli compression

Create a compression rule to turn off Brotli compression for all incoming requests of a given zone.

Disable compression for AVIF images

Create a compression rule to turn off compression for AVIF images, based on either the content type or the file extension specified in the request.

Enable Zstandard compression for default content types

Create a compression rule to turn on Zstandard compression for response content types where Cloudflare applies compression by default.

Use Gzip compression for CSV files

Create a compression rule to set Gzip compression as the preferred compression method for CSV files.

Use only Brotli compression for a specific path

Create a compression rule to set Brotli as the only supported compression algorithm for a specific URI path.

Define a single configuration rule using Terraform

Create a configuration rule using Terraform to turn off Email Obfuscation and Browser Integrity Check for API requests in a given zone.

Change the HTTP Host header and DNS record

Create an origin rule to change the HTTP Host header and the resolved DNS record.

Change the destination port

Create an origin rule to change the destination port.

Define a single origin rule using Terraform

Create an origin rule using Terraform to override the Host header, the resolved hostname, and the destination port of API requests.

A/B testing with same-URL direct access

Set up an A/B test by controlling what response is served based on cookies.

Append dates to cookies to use with A/B testing

Dynamically set a cookie expiration and test group.

Auth with headers

Allow or deny a request based on a known pre-shared key in a header. This is not meant to replace the WebCrypto API .

Send Bot Management information to origin

Send Bots information to your origin. Refer to Bot Management variables for a full list of available fields.

Send suspect bots to a honeypot

Use the bot score field to send bots to a honeypot.

Bulk redirect based on a map object

Redirect requests to certain URLs based on a mapped object to the request's URL.

Country code redirect

Redirect a response based on the country code in the header of a visitor.

Custom cache

Store, retrieve, and remove assets from cache programmatically. Use this template to optimize performance and implement custom caching strategies.

Debugging logs

Send debugging information in an errored response to a logging service.

Define CORS headers

Adjust Cross-Origin Resource Sharing (CORS) headers and handle preflight requests.

Follow redirects from the origin

Modify the fetch request to follow redirects from the origin, ensuring the client receives the final response.

Add HEX timestamp to a request header

Add a custom header to requests sent to the origin server with the current timestamp in hexadecimal format for debugging, tracking, or custom routing purposes.

Validate JSON web tokens (JWT)

Extract a JWT from the Authorization header, verify its HMAC-SHA256 signature using the WebCrypto API, and validate its claims.

Maintenance page

Serve a custom maintenance page instead of fetching content from the origin server or cache. Ideal for downtime notifications, planned maintenance, or emergency messages.

Override a Set-Cookie header with a certain value

Get a specific Set-Cookie header and update it with a certain value.

Redirect 403 Forbidden to a different page

If origin responded with 403 Forbidden error code, redirect to different page.

Redirect from one domain to another

Redirect all requests from one domain to another domain.

Remove fields from API response

If origin responds with JSON, parse the response and delete fields to return a modified response.

Remove query strings before sending request to origin

Remove certain query strings from a request before passing to the origin.

Remove response headers

Remove from response all headers that start with a certain name.

Return information about the incoming request

Respond with information about the incoming request provided by Cloudflare’s global network.

Rewrite links on HTML pages

Dynamically rewrite links in HTML responses. This is useful for site migrations and branding updates.

Change origin and modify paths

Route requests to a different origin, prepend a directory to the URL path, and remove specific segments.

Set security headers

Set common security headers such as X-XSS-Protection, X-Frame-Options, and X-Content-Type-Options.

Send timestamp to origin as a custom header

Convert timestamp to hexadecimal format and send it as a custom header to the origin.

Route to a different origin based on origin response

If response to the original request is not 200 OK or a redirect, send to another origin.

Sign requests

Verify a signed request using the HMAC and SHA-256 algorithms or return a 403.

Slow down suspicious requests

Define a delay to be used when incoming requests match a rule you consider suspicious based on the bot score.

Add a wildcard CORS response header

Create a CORS response header transform rule to add an Access-Control-Allow-Origin HTTP header to the response with wildcard as static value. (cookiename=value).

Add a request header with the current bot score

Create a request header transform rule to add a X-Bot-Score HTTP header to the request with the current bot score.

Add request header with a static value

Create a request header transform rule to add an X-Source HTTP header to the request with a static value (Cloudflare).

Add a request header for subrequests from other zones

Create a request header transform rule to add an HTTP header when the Workers subrequest comes from a different zone.

Add a response header with a static value

Create a response header transform rule to add a set-cookie HTTP header to the response with a static value (cookiename=value).

Normalize encoded slashes in URL path

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