We are using the Fastly Image Optimization service to serve the images for the imageslider, quizes, infographics and election executive tools. Currently we serve lossless webp images to all chromium based browsers and png's to all the other browsers.
Proposal
I think it makes more sense to serve lossy webp to all chromium browsers and progressive jpeg's to all other browsers. Some images will get up to 8x smaller.
I think at least for the imageslider and the quizes this optimization makes sense. For infographics we probably have to stick with png's because of the fonts
We are using the Fastly Image Optimization service to serve the images for the imageslider, quizes, infographics and election executive tools. Currently we serve
lossless webp
images to all chromium based browsers andpng
's to all the other browsers.Proposal I think it makes more sense to serve
lossy webp
to all chromium browsers andprogressive jpeg
's to all other browsers. Some images will get up to 8x smaller.Example: https://q-images-nzz-ch.global.ssl.fastly.net/2018/01/31/24c93128-2e13-48e5-a639-d068ce1b929b.png?width=940&format=webpll webpll: 824KB webply: 156KB png: 975KB pjpg: 155KB
I think at least for the imageslider and the quizes this optimization makes sense. For infographics we probably have to stick with
png
's because of the fonts