Come across the term CDN and wondering what it means? In short, a CDN, or ‘Content Delivery Network‘, is a large distributed network of servers (usually located in a variety of different countries across the world) used to store certain files (usually static files like images, CSS and JavaScript files) that get loaded on your website. Why is this a good thing? Well, it all comes down, essentially, to the fact that the farther away from a server each of your visitors is, the longer they will have to wait for the files that go together to make up your website to reach them. By storing files in multiple locations around the world, a CDN allows each of your site’s visitors to automatically load them from whichever server in the network is the closest — thereby significantly reducing the load time of your website for visitors across the globe!

Here’s a handy infographic by KeyCDN to explain further, covering how CDNs work and the various benefits of using one

What is a Content Delivery Network?

What is a CDN - Infographic

(click to enlarge)

– infographic by KeyCDN

If you’re interested in finding out just how much difference a CDN can make to load speeds, check out our earlier post on just that: ‘How much difference does a CDN make to WordPress load speeds? – a real-life example!’ — and if you’re interested in giving a CDN a whirl yourself, head on over to KeyCDN’s official website to find out more on what they have to offer and how to go about getting started!

Using a CDN yet?


Leave a Reply