I use SPIO with Cloudflare and my WebP or AVIF images aren't served, why is that?

ShortPixel Image Optimizer can be used to deliver WebP and AVIF images even if a website uses Cloudflare. For this to work, you must have the "Using the <PICTURE> tag syntax" option enabled in Settings > ShortPixel > Advanced, as shown below:

Both sub-options can be used:

You can also use the second option ("Without altering the page code (via .htaccess)"), but in this case you need to consider the following:

  • It does not work for websites with Cloudflare's free plan.
  • If you have a paid plan from Cloudflare, you need to make sure it supports the Vary header and is properly configured to deliver WebP and/or AVIF from the same URL based on browser capabilities so that it knows (and caches and delivers accordingly) that there are 2 different files to deliver for the same URL depending on the Accept header sent by the browser. Here's how to do it.
Did this answer your question? Thanks for the feedback There was a problem submitting your feedback. Please try again later.

Still need help? Contact Us Contact Us