Definition
Amazon CloudFront is a global content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers with low latency and high transfer speeds. It works by caching content at edge locations worldwide, bringing it closer to end users. This significantly improves website performance and user experience by reducing load times. For instance, a popular e-commerce site uses CloudFront to deliver product images and videos quickly to shoppers across different continents. Unlike a simple caching server within a single data center, CloudFront's distributed nature provides resilience and scalability. This service is relevant for AWS certification exams like the Solutions Architect Associate and is a key component in cloud architecture discussions.