Explain what Amazon CloudFront is and how it works for content delivery.

Amazon CloudFront is a global content delivery network (CDN) that accelerates the delivery of web resources such as HTML, CSS, JavaScript, images, and videos to users worldwide.

How it works:

1. You upload your content to AWS servers (e.g., S3 or your own server).
2. CloudFront caches copies of this content at its distributed edge locations around the world.
3. When a user requests content, CloudFront directs the request to the nearest edge location, significantly reducing delays and speeding up loading.
4. If the content is not in cache, CloudFront retrieves it from the origin server, caches it, and delivers it to the user.

Thus, CloudFront enhances performance, reduces load on origin servers, and improves user experience through fast and reliable content delivery.