Caddy – Modern Web Server

Caddy is a powerful, enterprise-ready web server with automatic HTTPS. Its simple configuration and built-in Let’s Encrypt support make it the easiest web server to deploy securely.

Key Features

• Automatic HTTPS: Built-in certificate management
• Caddyfile: Human-readable configuration
• HTTP/3: Modern protocol support
• Reverse Proxy: Advanced proxying capabilities
• Zero Downtime: Graceful configuration reloads

Installation

Install Caddy on Ubuntu:

sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
sudo apt update
sudo apt install caddy

Usage Examples

Caddyfile configuration:

# Basic static site
example.com {
    root * /var/www/html
    file_server
}

# Reverse proxy
api.example.com {
    reverse_proxy localhost:3000
}

# PHP site
php.example.com {
    root * /var/www/php
    php_fastcgi unix//run/php/php-fpm.sock
    file_server
}

Benefits

Caddy eliminates SSL complexity with automatic certificate management. Its modern design and sensible defaults reduce configuration while improving security.

Download Caddy