Fly.io

Fly is an Application Delivery Network (ADN). It's a global load balancer, a smart reverse proxy, a library of powerful Middleware; it's a CDN that developers like you control. With Fly, you can… * Use the Fly API and in one call generate an automatically renewing Let's Encrypt SSL certificate for any domain that you or your customers own. * Thread all of your applications, backends, functions and services together atop one hostname. * Unlock potent features from our Middleware library to save developer time and add value to your applications: Server-side authentication and analytics, render speed tracking, geo IP routing, the web application firewall, and more. * Serve all of your traffic at blazing speeds from a relaible global delivery network with caching and HTTP/2 over SSL. In a few clicks, your visitors will access your sites faster and more securely and your developers can weave logical magic into a powerful global edge-server network.