News From CloudFlare Labs: Javascript Preloader Research

CloudFlare uses various techniques to enhance site speed and security, some of which are already employed by internet giants while others represent new advancements. One such technique is Web Content Optimization (WCO), which goes beyond traditional caching CDN to optimize site rendering on different browsers and devices. A challenge in this area is reliably preloading Javascript without execution, as established techniques may fail when deployed across a wide range of websites and devices. CloudFlare has developed an innovative solution for this issue that will significantly improve web performance, particularly on mobile devices, and will be rolled out to all users soon.