Cloudflare Images

Cloudflare Images provides fast, responsive image delivery with powerful transformation capabilities. Explore different image transformations below.

Image Transformations

Select a transformation to see it applied to the image in real-time.

HMAC Validation

To ensure the security of image transformations and prevent unauthorized usage, you can leverage Cloudflare's Web Application Firewall (WAF) to implement HMAC validation.

To use HMAC validation:

  1. Generate the HMAC signature with your secret key.
  2. Append the signature to the image URL as a query parameter.
  3. Configure Cloudflare's WAF to validate the HMAC signature on incoming requests.