How to implement a CDN

Want to know what is CDN, how it works, and why it matters? This tutorial covers everything you need to boost your site performance, including setting up a WordPress CDN, configuring key settings, and learning how to use CDN in WordPress effectively.

You’ll learn how a CDN (Content Delivery Network) caches your site’s static files and serves them from locations closest to your visitors—reducing load times and bandwidth usage while increasing global reliability.

We walk you through setup using Cloudflare, show you how to adjust settings like compression and caching, and demonstrate how to clear CDN cache in WordPress after site changes using the Cloudflare plugin.

Whether you’re running a blog or business site, adding a CDN to your Contabo VPS or server setup is a smart move for speed and stability.

🕐 Timeline:
0:00 - 0:28 Introduction
0:28 - 0:51 What is a CDN and why use it
0:51 - 1:05 Choosing a CDN provider (Cloudflare, Bunny.net, etc.)
1:05 - 1:26 Setting up Cloudflare and updating DNS
1:26 - 1:45 Optimizing settings: caching, minify, compression, SSL
1:45 - 1:54 Testing performance with GTmetrix and PageSpeed Insights
1:54 - 2:21 Using a CDN in WordPress + clearing CDN cache
2:21 - 2:50 Conclusion

Key Topics Covered:
What is a CDN and how it improves website speed and reliability
How to set up a CDN using Cloudflare with Contabo servers
Steps to update DNS and configure CDN settings (caching, minify, compression, SSL)
Testing performance using tools like GTmetrix or PageSpeed Insights
How to use a CDN in WordPress, including plugin options like Cloudflare and WP Rocket
How to clear the CDN cache in WordPress to reflect updates and changes

Important Notes:
Choose a reliable CDN provider (e.g. Cloudflare, Bunny.net, Amazon CloudFront, KeyCDN)
After setup, update your DNS records and point your domain to the CDN’s nameservers
Enable caching, minify HTML/CSS/JS, and activate Brotli or Gzip compression for best performance
In WordPress, use plugins like Cloudflare or WP Rocket for simple integration
After making changes to your site, always clear the CDN cache to make updates visible to users

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