Cloudflare Polish is a one-click image optimization product that automatically optimizes images in your site. Polish strips metadata from images and reduces image size through lossy or lossless compression to accelerate the speed of image downloads.| Cloudflare Docs
Edge Cache TTL (Time to Live) specifies the maximum time to cache a resource in the Cloudflare global network. Edge Cache TTL is not visible in response headers and the minimum Edge Cache TTL depends on plan type.| Cloudflare Docs
The Hypertext Transfer Protocol (HTTP) is a stateless \%application- level protocol for distributed, collaborative, hypertext information systems. This document defines HTTP caches and the associated header fields that control cache behavior or indicate cacheable response messages.| IETF Datatracker
These are the settings that you can configure when creating a cache rule.| Cloudflare Docs
Use Cache Rules to customize cache settings on Cloudflare. Cache Rules allows you to make adjustments to what is eligible to cache, how long it should be cached and where, as well as trigger specific interactions with Cloudflare's cache and other Rules products for matching requests.| Cloudflare Docs
Origin Cache Control is a Cloudflare feature. When enabled on an Enterprise customer's website, it indicates that Cloudflare should strictly respect Cache-Control directives received from the origin server. Free, Pro and Business customers have this feature enabled by default.| Cloudflare Docs
Cloudflare respects the origin web server’s cache headers in the following order unless an Edge Cache TTL cache rule overrides the headers. Refer to the Edge TTL section for details on default TTL behavior.| Cloudflare Docs
