The Anycast methodology is critical for CDNs to bring their content closer to the end user. Anycast is a network addressing and routing method that allows single destination addresses with routing paths to multiple endpoints. If Anycast is implemented, the routers redirect the request according to various factors such as hop count, distance, lowest cost, latency measurements, or based on the least congested route. As long as the product is identical, the customer expects to order as soon as possible. The customer or end user requests certain data and Anycast directs the request to the server, which will fulfill the order as soon as possible.
CDN is designed to cache static elements (such as images, js, css files, fonts) and elements that can be equated to static ones (dynamically generated pages with
the same content for all visitors that can be cached). When accessing a system domain, the object is imported from the Origin server and cached (or is served without caching if it is not cached, e.g. a dynamically generated page whose content varies depending on the user viewing the page). Files are imported from Origin Server through the node closest to Origin Server, other nodes receive files from the Import node.