Cloudflare's Railgun uses advanced network optimization to ensure delivery of customer content as quickly as possible. In the past, most web content could not be cached because they were dynamic. However, even dynamic content changes very slowly and cannot be cached. Railgun tracks page changes, keeps track down to bytes, and only sends the actual changed bytes across the network.
Railgun achieves a compression ratio of 99.6%, which means that content that used to require 200 packets in the past can now be sent with a single packet. This brings a 140% performance boost to website visitors.
99.6% compression between your data center and the closest Cloudflare data center to website visitors, free for Cloudflare partners
You can try our free service with our Cloudflare RailgunFree.