What we do

• We almost always install the WordPress Converter for Media extension (https://wordpress.org/plugins/webp-converter-for-media/), which converts every image loaded (depending on the settings chosen) into webp or avif, one by one or automatically.
• Our customers continue to upload the images they want to the site and, by rewriting the url, the browser serves webp.
• To see the effects, right-click > Inspect in your page, then click on ‘Network’, tick the ‘Disable cache’ box, select ‘Img’ and refresh the page. A list of the images on the page will be displayed, with their type, size, loading speed, etc.

In the media library, it looks like this:

• In addition to installing this plugin, we activate .zip compression by default on all the sites we host. The cache is set to 365 days.
• Finally, before encoding their content, we stress to our customers the weight and size of the visuals loaded: their web pages are not intended to be printed, and even less so in 4x3 m. There's no point in loading ultra HD for a small column image that will be viewed on a mobile phone.
• At the end of each project, we draw up a quality report listing, among other things, the weight of the images and videos uploaded to the sites, and their overall impact on the site's performance.

What we could improve / implement

• Place even greater emphasis on the impact of image weight in terms of site performance, over and above the energy-consuming aspect.
• Carry out more regular checks after sites have been launched