We do not use any CDN and allow users to use any they wish to. Our aim is to make the default setup so fast that CDN is not required .
Incase you wish to use a CDN and need help, you can go through this.
WPOven is the best Managed WordPress hosting for agencies and businesses that want to succeed. With Unlimited sites hosting option, its easy to use and manage, so you can focus on growing your business.