SL#144 - AWS Services (32/120) - Amazon CloudFront: The Cache Key Is the Product, and Most Hit Ratios Are Self-Inflicted

CloudFront is a cache with a global front door, and the only thing it really sells you is a cache key. This reference covers the model, the pricing dimensions that changed, the quotas that bite, and a private S3 distribution where a 20 line CloudFront Function takes the cache hit ratio from a self-inflicted mess to nearly perfect.