Amazon CloudFront is a service provided by Amazon Web Services (AWS). It's a content delivery network (CDN) that securely delivers data, videos, applications, and APIs to users globally with low latency and high transfer speeds. Amazon CloudFront integrates with other AWS services, such as Amazon S3, Amazon EC2, and AWS Shield, for a more seamless and enhanced web content delivery experience. Its main purpose is to allow developers and businesses to distribute their content quickly and efficiently, improving the user experience by reducing the time it takes to receive the data.