CloudFront is an essential part of the serverless ecosystem, providing the end user with fast loading of static parts of a website or application (CDN) such as HTML, CSS, JavaScript code or multimedia, thanks to high transfer speeds and a unique AWS infrastructure available worldwide. It is a flexible tool that allows you to adjust its functionalities to the needs of programmers and the user. CloudFront integrates with many other AWS services such as Amazon S3, Amazon EC2, or AWS Lambda @ Edge.