These are the steps you’ll follow:
Choose CDN Provider & Package — make sure they tick all the right boxes.
Prepare Site — the exact setup will depend on your CDN provider.
But generally it’s relatively easy on WordPress, with the right plugin.
Two of the best plugin options are: WP Super Cache (the simplest), and W3 Total Cache (more advanced control over your caching and CDN settings).
Connect CDN — follow the setup instructions from your CDN provider.
If you’re looking for a provider that simplifies things with Managed WordPress and Supersonic CDN, Namecheap has you covered.