Optimizing caching and availability

This section describes how to set up and manage the caching of objects to improve performance and meet your business requirements.

To learn about adding and removing the content that you want CloudFront to serve, see Adding, removing, or replacing content that CloudFront distributes.

Topics

• How caching works with CloudFront edge locations
• Increasing the proportion of requests that are served directly from the CloudFront caches (cache hit ratio)
• Using Amazon CloudFront Origin Shield
• Optimizing high availability with CloudFront origin failover
• Managing how long content stays in the cache (expiration)
• Caching content based on query string parameters
• Caching content based on cookies
• Caching content based on request headers