Webflow keeps loading PNG even though I am using WebP

[Al_Yu]

Pagespeed shows that I am using an image in PNG format, but in reality, I am using WebP.

Here is what DevTools in Chrome shows. For some devices, Webflow still uses PNG for some reason.

Why does this happen, and how can I force it to use WebP on all devices?

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Here is my site Read-Only: LINK
(how to share your site Read-Only link)

[memetican (Michael Wells)]

Outside of Webflow’s Optimize, there is no device-specific delivery.

For more investigation, you’d have to share-

• your readonly designer link to the page, with clear details on which image you’re having issues with
• a published link to the same page, the one you’re running the test on

Several possibilities come to mind;

• The image has not converted to WEBP, sometimes conversions fail
• Pagespeed is picking up srcset images which might be converted differently
• Pagespeed is picking up cached data ( common for lighthouse, haven’t seens this for pagespeed )