Updated: Oct 11, 2022
What is a CDN?
CDN is an acronym for Content Delivery Network, which is a network of servers that deliver cached static content from websites to users based on the user’s geographic location. If this sounds overwhelming, then let’s break it down into simpler words.
How Does a CDN Work?
Usually, when a user comes to your website, their browser downloads the website from your web host’s server. Your web host’s server is located at a physical location, for example, Houston, Texas.
This means that every user is accessing this one server in Texas to view your website. Now, if you have a high volume of traffic, then you can overload your server, which leads to a slow-loading site or even a server crash.
This is where a CDN comes in handy. A CDN is a network of servers that are spread throughout the world. When you use a CDN, your static content is cached and stored on these servers.
Why Do You Need a CDN?
Having a CDN can impact your website’s performance and boost the user experience. Below are some of the advantages of using a CDN:
Speed – A CDN helps improve the page load time of your site and makes it faster.
Crash Resistance – Using a CDN allows you to distribute the load to multiple servers instead of having 100% traffic to our main server, thus making it less likely to crash.
Improved User Experience – With a CDN making your website faster, you’ll notice a lower bounce rate on your site. It also increases the number of pages viewed by each user. A fast site means improved user experience.
Improvement in SEO – Google has stated that faster sites tend to rank higher in search engines. A CDN can boost your WordPress SEO and help you achieve higher keyword rankings.
Here are some of the widely used CDN services:
Google Cloud CDN