Content Delivery Network - network of servers worldwide that store copies of your content close to users. Like having product warehouses in every city for faster delivery.
Netflix uses CDN to store popular shows in servers near you, so when you click play, the video loads instantly instead of traveling from across the world.
All provide global edge locations to cache and deliver content closer to users. AWS CloudFront and GCP Cloud CDN focus on CDN delivery (often paired with their load balancers). Azure Front Door combines CDN-like caching with global HTTP(S) load balancing and WAF at the edge. OCI CDN provides edge caching and delivery integrated with OCI origins.
Explore real-world architectures from our community that use CDN: