What’s CDN? Why You Need It In WordPress?

87. What's CDN Why you need it in WordPress

CDN is short for Content Delivery Network.

This is a system of distributed servers (network). These servers deliver Web pages and other Web content to a user based on the geographic locations of the user, the origin of the webpage and a content delivery server.

This service is effective in speeding the delivery of content of websites that have high traffic and websites that have global reach. The closer the CDN server is to the user geographically, the faster will the content be delivered to the user. CDNs also provide protection from large surges in traffic.

The CDN copies the pages of a website to a network of servers that are dispersed at geographically other locations, caching the contents of the page. When a user requests a webpage which  is part of a content delivery network, the CDN will redirect the request from the originating site’s server to a server in the CDN that is closest to the user and deliver the cached content. The CDN also communicates with the originating server to deliver any content that has not been previously cached.

In WordPress using a CDN can greatly reduce the load on your website. Offloading the searching and delivery of images, javascript, css and theme files to a CDN is not just faster but also takes great load off your WordPress server’s own app stack. A CDN is most effective when used in conjunction with a WordPress caching plugin such as W3TC.


Amazon Cloudfront, for instance, uses the Amazon S3 service to provide Content Delivery Network (CDN) functionality for your static files. A CDN caches your static files on numerous web servers all over the world. It’s providing faster download performance for your users no matter where they are. We recommend  you to use Cloudfront in tandem with S3 and not only S3 alone; the costs are not significantly different. MaxCDN is a pay-per-usage Content Delivery Network (CDN) like Amazon Cloudfront. Among the differences are support for Video-on-demand as well as “mirroring” of files, although you can upload them if you prefer.

Hope this article was helpful for you, guys!


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  1. Great article.
    CDN plays a major role in faster loading of web pages. It also helps in strengthening the website security.
    At Our website @3nions we are using Cloudflare CDN.

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