- Log in to the and select the account and domain where you want to activate Polish.
- Go to Speed > Optimization > Image Optimization.
- Under Polish, select Lossy or Lossless from the drop-down menu.
- (Optional) Select WebP. Enable this option if you want to further optimize PNG and JPEG images stored in the origin server, and serve them as WebP files to browsers that support this format.
To ensure WebP is not served from cache to a browser without WebP support, disable WebP at your origin web server when using Polish.