Prefetch URLs Intro

Cache Prefetch is a way for the content to already be on the nearest node cache almost instantaneously available to a visitor upon request. This is achieved by allowing the edge server to fetch necessary resources from the origin server, required to display the content that a user might access in the near future. The browser cache stores these resources enabling faster delivery. Prefetching reduces latency to the user as the next set of data will have already been transferred from the origin to the edge server by the time the user asks for it.

Prefetching retrieves data (either from a CDN's edge server or an origin server) and caches. The system attempts to download a configurable number of data ahead of the user's requested chunk.