CloudFlare recently rolled out a premium service called Railgun that's available to CloudFlare Business and Enterprise customers. Railgun is web optimization software that's designed to speed up the delivery of content that cannot be cached.
Suppose you needed to transfer 1TB of data (perhaps your home movie collection) from San Francisco to London. What would be the fastest route? Put the disk on British Airways flight 286 at SFO, or transfer it across the Internet using a 100 Mbps connection?
On Monday, CloudFlare officially announced Page Rules. The new feature allows you to customize behavior on a page-by-page basis. The previous two blog posts have outlined how you can turn off CloudFlare's features based on URL patterns, or accomplish advanced URL forwarding.
CloudFlare gets a lot of questions about caching and our free CDN (content delivery network), so I thought I would put together a really quick guide about what CloudFlare caches and more.