These all are what I call pre-requisites for Global Sustainable Cloud:
Fast – Using a network of edge locations around the world, Amazon CloudFront caches copies of your content close to end users, lowering latency when they download your objects. The service also gives you the high, sustained data transfer rates needed to deliver large popular objects to end users at scale.
Simple – A single API call lets you get started distributing content from your Amazon S3 bucket through the CloudFront network. And, since there’s no need to negotiate with a sales person, anyone can get started in just minutes.
Designed for use with other Amazon Web Services – Amazon CloudFront is tightly integrated with Amazon S3, which holds the definitive versions of your content. CloudFront also integrates with other AWS Services, like Amazon Elastic Compute Cloud (Amazon EC2). For instance, you can run a web server on Amazon EC2 to serve dynamic HTML pages, while delivering static content (i.e. images) through Amazon CloudFront.
Cost-Effective – Amazon CloudFront passes on the benefits of Amazon’s scale to you. You pay only for the content that you deliver through the network, without minimum commitments or up-front fees.
Elastic – With Amazon CloudFront, you don’t need to worry about maintaining expensive web-server capacity to meet the demand from potential traffic spikes for popular content. The service automatically responds as demand increases or decreases without any intervention from you.
Reliable – Amazon CloudFront is built using Amazon’s highly reliable infrastructure. The distributed nature of edge locations used by Amazon CloudFront automatically routes end users to the closest location as required by network conditions.
Global – Amazon CloudFront uses a global network of edge locations, located near your end users in the United States, Europe and Asia.
AMZN CloudFront link