CDN allows users to load Lightning Experience and other apps faster by enabling content delivery network (CDN) to serve the static content for Lightning Component framework.
CDN improve the load time of static content by storing cached versions in multiple geographic locations. This setting turns on CDN delivery for the static JavaScript and CSS in the Lightning Component framework. It also changes the source domain that serves the files.
Allows users to load Lightning Experience and other apps faster by enabling Akamai’s content delivery network (CDN) to serve the static content for Lightning Component framework. … This setting turns on CDN delivery for the static JavaScript and CSS in the Lightning Component framework.