Last week Jetpack announced that its Photon image service added support for the WebP image format, which provides up to 34% size reduction for served images when compared JPEG images of the same visual quality. For Photon users this translates into faster-loading pages.
WebP is not yet natively supported by all browsers, so Photon will auto-detect the visitor’s browser and serve the images in the best quality/speed possible.
I spoke with Jetpack team leader George Stephanis at WordCamp US about the improvements to Photon, and he broke it down for us in the video interview below.
So, is this done automatically or is there a hook or a filter that needs to be enabled?