CDN is short for Content Delivery Network.
It is a network of servers (points of presence) that store replicas of the content of other sites in memory (cache) and then deliver them to visitors, based on geographic location to connect them to the nearest and fastest server, reducing data transfer time (latency).
The CDN will also communicate with the source server to upload any content that has not previously been cached. Furthermore its use allows the site to better support DDoS attacks and maintain high availability, by being present simultaneously in different datacenters.
Service page: https:/oncloud/ .website/content-delivery-network/
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