CDN: What Is It and How to Create It?
A CDN (Content Delivery Network) is a system of distributed servers that deliver web content to users based on their geographic location, the origin of the webpage, and a content delivery server. It’s designed to reduce latency, speed up load times, and improve performance, especially for websites with a global audience. In this guide, we’ll break down what it is and how beginners can create a Content Delivery Network using GeoDNS.
What Is a CDN?
When a user accesses your website, their browser makes a request to your web server. If that server is located far from the user, it can result in slow loading times. A Content Delivery Network solves this by caching and delivering your content from a server that’s geographically closer to the user.
For example, if your origin server is in New York, but your visitor is in Tokyo, a CDN will serve the content from a nearby node in Asia rather than from the U.S. This results in a much faster experience.
These networks are used to serve static files like images, CSS, JavaScript, videos, and even entire web pages. Major websites like Netflix, Amazon, and Facebook use it to ensure reliability and speed.
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