How to use CDN with Zoho wesbites.

I want to use CDN with my zoho- hosted website. I currently have a dot in website.
I would seriously like to utilize CDN such as MAX CDN and cloudflare.

Its that am not able to change dns with dot in website. Which is a great catch.
Today site speed matters a lot both for business or personal sites.
I have lot of visitors from different parts of the world and they suggest to make the website more faster.

I would be great if I'm able to use dns or may be cdn.