images.tooling.report

Can downgrade from modern to old formats

Will it downgrade from a WebP/AVIF to a JPEG?

a child looking into a telescope, pointed upwards

Introduction

Just as automatically sending modern formats should be expected, we also expect that those using browsers that don’t support modern formats do not get an unnecessarily broken experience. If a WebP/AVIF image is explicitly requested, but would not be able to be rendered based on the Accept header, then the response should be “downgraded” to a supported image format.

The Test

Does an explicit request for a AVIF/WebP image automatically respond with a JPEG image based on the Accept header?

Conclusion

akamai
bigCartel
cloudflare
cloudinary
ecwid

Ecwid does not support uploading AVIF or WebP, therefore this test is not applicable.

fastly
goDaddy
imageEngine
imaginary
imgix
imgproxy
optimole

result: pass type: cmsPlugin


shopify
shortPixel
smush
squarespace
thumbor
webflow

As webflow does not support AVIF or WebP, this test is not applicable.

weebly

As weebly does not support AVIF or WebP, this test is not applicable.

wix