Which CDN do you would recommend for a wordpress site: Cloudflare or Aws Cloudfront?

Hi,

To best evaluate AWS CloudFront, I would recommend you to read this page about its key features

One of the aspects, I like most is Lambda@Edge (search for it in the page above): it is a very useful feature when you need to process input request or output response at edge to customize, reinforce security, do custom processing, etc. based on requester location.

Have a look at https://aws.amazon.com/lambda/edge/

Also, security is very advanced: (from key features above)

Protection against network and application layer attacks
Amazon CloudFront, AWS Shield, AWS Web Application Firewall (WAF), and Amazon Route 53 work 
seamlessly together to create a flexible, layered security perimeter against multiple types of attacks 
including network and application layer DDoS attacks. All of these services co-reside at the AWS edge 
and provide a scalable, reliable, and high-performance security perimeter for applications and content.
 With CloudFront as the “front door” to an application and infrastructure, the primary attack surface is 
moved away from critical content, data, code and infrastructure. Learn more about AWS Best Practices
 for DDoS Resiliency.

Best,

Didier