Caddy is a powerful, enterprise-ready, open source web server with automatic
HTTPS written in Go.

Features:

- Easy configuration with the Caddyfile
- Powerful configuration with JSON config
- Dynamic configuration with a JSON API
- Config adapters if you don't like JSON
- Automatic HTTPS by default
  - ACME (Let's Encrypt) for public sites
  - Fully-managed local CA for internal names and IPs
  - Can coordinate with other Caddy instances in a cluster
- HTTP/1.1, HTTP/2, and experimental HTTP/3 support
- Actually fun to use

WWW: https://caddyserver.com