Use Video Formats for Animated Content

Lighthouse will flag any animated files, such as GIFs, that are potentially too large, along with the potential size savings in size during a test. Developers can then act and convert any necessary animations into a different format, like MPEG or WebM formats. Converting large GIFs into smaller video files allows for immediate bandwidth savings, which is especially important for users accessing your content on mobile devices. Additionally, Lighthouse will recommend converting GIFs into static image formats, like PNG or WebP formats, where applicable. Again, static images more than likely make up the bulk of your website content. The purpose of this audit is to provide insight into where bandwidth can be saved, which provides for more efficient delivery from the server to the browser/client.