Nginx bites you in the a**: you start your project, choose the most famous web server (nginx), then you build and build and start needing the pro features. But they don't give you an up-front price! You have to contact them for a custom quote. That's when you start pondering moving to Caddy. But you're too far down the rabbit hole. Luckily, Cloudflare does a decent job of providing the features you need, at a clear price.