CloudFront cost: how to understand and reduce them - and save the planet while you're at it
Amazon CloudFront is a Content Network Delivery service (CDN). CDNs are primarily used to reduce latency. They do this by serving certain types of content (images, videos and static files) from servers that are geographically closest to any particular user. I.e. users in France will receive content from the server in Paris; users in Malaysia will receive content from the server in Kuala Lumpur.