As a web server, Caddy is a relatively new alternative to Apache and Nginx although it was released initially in 2015. It is an open source web server built using Go language and it uses HTTPS by default. Like any other web server, Caddy can be used as a web server that serves both static and dynamic websites. Caddy offers a versatile and efficient static file server. It can also be used as a robust and scalable reverse proxy. In this tutorial, we will show you how to install Caddy web server on Ubuntu 22.04.