OK i found a fix to stop caching by using the embed widget and the following code
document.write('<img src="https://uploads-ssl.webflow.com/5b86a13268a1c51a0724badf/5b895206e60d4f76caebec17_ezgif.com-apng-maker%20(3).png?'+Math.random()+'" alt="The Hinterlander logo" border="0" height="auto" width="220">');
For those interested in creating some APNGs
I exported my video from after effects with background transparency enabled as a PNG sequence.
also set the RGB to RGB+Alpha in the render queue
then go to https://ezgif.com/apng-maker and tinker around to your hearts content. try to keep file size under 4mb
once you’ve saved that out then use https://tinypng.com/ who also support APNG compression to reduce the file size further with no loss of quality.
Here’s an example of GIF vs APNG