Unveiling CDNs: How They Speed Up Websites

What is CDN

When you visit a website, it's like taking a journey from your computer to the website's home base, called the origin server. This server holds all the website's stuff – pictures, text, videos – everything you see.

But what if the origin server is far away from you? It's like traveling long distances just to get a snack! This is where CDNs(Content Delivery Network) come to the rescue.

CDNs are like a network of tiny snack shops spread everywhere. When you want to see a website, instead of going all the way to the main server, you can visit one of these nearby snack shops, called edge servers.

How CDN works:

When you ask for a website, the CDN checks if it already has a copy nearby.

If it does, great! It serves you from there, making things super fast.

If not, it quickly grabs the stuff from the main server, brings it to you, and saves a copy nearby for others to enjoy.

This setup makes websites load faster because you're getting stuff from nearby instead of traveling far.