CDN (Content Delivery Network)

Content delivery networks (CDNs) are the transparent backbone of the Internet in charge of content delivery.

The website delay interval is affected by a number of factors, many of which are specific to a given web page. However, in all cases, the length of the delay is affected by the physical distance between you and that website’s hosting server.

The mission of a CDN is to virtually shorten that physical distance, with the goal of improving the speed and performance of the site.

To minimize the distance between visitors and your website’s server, a CDN stores a cached version of its content in multiple geographic locations (points of presence, or PoP). Each PoP contains a number of caching servers responsible for delivering content to visitors within its proximity.

In essence, CDN places your content in many places at once, providing superior coverage to its users. For example, when someone in Japan accesses your website hosted in the USA. USA, Performed through a local Japan PoP. This is much faster than receiving visitor requests and responses, traversing the entire width between the source and destination.

This is how a CDN works in a nutshell. Then I think you might understand roughly how CDN works.

By Yuuma.




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