Science

How Content Delivery Network (CDN) Works


How CDN Works ?

A cdn is system that offload your website by distributing your content among several edge servers. When using a CDN, the content is cached in this network and delivered using the closest edge server rather than direct access to the content in your server.

How does it works

The CDN services works by using a “Pull zone” which on setup will get you a “CDN URL” or “Pull zone URL”. This URL will be used to replace your normal URL for the static content.

 

Wikipedia :

content delivery network or content distribution network (CDN) is a geographically distributed network of proxy servers and their data centers. The goal is to distribute service spatially relative to end-users to provide high availability and high performance. CDNs serve a large portion of the Internet content today, including web objects (text, graphics and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, on-demand streaming media, and social networks.

The term CDN is an umbrella term spanning different types of content delivery services: video streaming, software downloads, web and mobile content acceleration, licensed/managed CDN, transparent caching, and services to measure CDN performance, load balancing, multi-CDN switching and analytics and cloud intelligence. CDN vendors may cross over into other industries like security and WAN optimization.

CDNs are a layer in the internet ecosystem. Content owners such as media companies and e-commerce vendors pay CDN operators to deliver their content to their end-users. In turn, a CDN pays ISPs, carriers, and network operators for hosting its servers in their data centers.

 

How cdn works

CDN Architecture


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