Content delivery is designed to quickly and efficiently distribute content to users. The best way to do this is to leverage a Content Delivery Network (CDN). Amazon's CDN service is Amazon CloudFront.

At the time of writing, AWS has 20 regions, and it has an additional 115 edge locations that can be used as part of CloudFront. This gives you a massive global network of resources that you can use to improve your users' experience of your application.

CloudFront works closely with S3 to serve static assets. In addition to this, it can be configured to cache dynamic content. This gives you an easy way to improve the performance of applications that are not even aware of CloudFront.

CloudFront websites are referred to as distributions, which describes their CDN role.