Cloudflare just got faster and more secure, powered by Rust
We’ve replaced the original core system in Cloudflare with a new modular Rust-based proxy, replacing NGINX.

We’ve replaced the original core system in Cloudflare with a new modular Rust-based proxy, replacing NGINX.
Cloudflare is using its vast traffic to send responses faster than ever before, by learning the characteristics of each individual network and tuning our congestion control system.
Cloudflare was originally built as native services, but we’re building more and more of it on Cloudflare itself. This post describes how and why we’re doing this.
I joined Cloudflare as an Engineering Manager, and wanted to make the most of the experience. Here are my objectives and some principles I followed.