How do I install Caddy on VPS.org?

Deploy Caddy on VPS.org with our one-click installer or via SSH. Caddy is infrastructure software. It runs as a service on your VPS and either provides connectivity to other services or hosts your application code. Most production deployments enable systemd, firewall rules, and TLS.

What are the system requirements for Caddy?

Caddy is light on resources: the $3.50/month plan (2 GB RAM, 10 GB SSD) is enough for small installs. Upgrade to a larger plan from the control panel as you grow; the resize restarts the server and keeps your data.

How much does it cost to host Caddy?

VPS.org plans start at $2.50/month; the right plan for Caddy depends on its memory needs. Infrastructure software like Caddy scales with concurrent connections and the workload it serves. The $3.50/month plan (2 GB RAM) covers light usage; move to the $20/month plan (4 GB RAM) or higher for production load.

Do I get full root access with Caddy hosting?

Yes. Every VPS.org plan includes full root SSH access: configure Caddy, install extensions, modify config files and customize the kernel as needed.

Can I upgrade my Caddy server later?

Yes. Upgrade to a larger plan from the control panel; the resize restarts the server and keeps your data. Caddy pairs with the rest of your stack: a database (PostgreSQL, MySQL), a cache layer (Redis), an observability stack, and a TLS certificate.

Can I serve Caddy over HTTPS?

Yes. A certificate is not bundled with the server, but you can install a free Let's Encrypt certificate for Caddy with Certbot or Caddy, which renew it automatically.

Are backups available for Caddy?

Yes. Backups are a paid add-on: daily (+30% of the plan price, kept 7 days) or weekly (+20%, kept 28 days). Snapshots are free and can be taken on demand. Both are stored on the same storage cluster as the server, so keep an off-site copy of important Caddy data.

How long does it take to deploy Caddy?

A new VPS is usually online in about 2 minutes. The Caddy one-click install then runs on first boot, and larger applications can take several more minutes to finish.

Can I install other software alongside Caddy?

Yes. With full root access you can run any compatible stack alongside Caddy. Caddy pairs with the rest of your stack: a database (PostgreSQL, MySQL), a cache layer (Redis), an observability stack, and a TLS certificate.

Which operating systems support Caddy?

The one-click installer deploys Caddy on the operating system it was built for, shown at checkout. To install Caddy yourself, VPS.org offers Ubuntu, Debian, CentOS Stream, Rocky Linux, Fedora and Alpine.

Is attack mitigation included for my Caddy server?

No. VPS.org does not include denial-of-service mitigation. For a public Caddy site, put a proxy service such as Cloudflare in front of it and close unused ports with a firewall on the server.

Yes. Contact support within 30 days of your first purchase to request a refund if VPS.org is not right for your Caddy project. Domain registrations are excluded.

Caddy - One-Click VPS Installation

Name: Caddy
Price: 2.50 USD
Availability: InStock

Overview

Caddy is a powerful, enterprise-ready web server with automatic HTTPS that makes serving websites remarkably simple. Unlike traditional web servers that require complex configuration files and manual SSL certificate management, Caddy automatically obtains and renews SSL/TLS certificates from Let's Encrypt, making HTTPS the default for all your sites with zero configuration.

Built in Go for exceptional performance and reliability, Caddy combines the ease of use of modern platforms with the power and flexibility needed for production deployments. The server uses a simple, intuitive Caddyfile configuration format that's human-readable and easy to maintain, eliminating the need to learn complex Apache or nginx syntax.

Caddy excels as a reverse proxy, load balancer, and API gateway, with built-in support for HTTP/2, HTTP/3 (QUIC), WebSocket, gRPC, and FastCGI. It can serve static files blazingly fast, act as a reverse proxy for your applications, automatically compress responses, and handle complex routing scenarios with ease. The server's modular architecture allows you to extend functionality through a rich ecosystem of plugins.

One of Caddy's standout features is its automatic HTTPS management. When you configure a site, Caddy automatically obtains a trusted certificate, serves it with optimal security settings, and manages renewal before expiration - all without any manual intervention. This makes securing websites trivial, even for those without deep knowledge of SSL/TLS.

Caddy includes powerful features like on-demand TLS certificate issuance (perfect for SaaS platforms with custom domains), graceful configuration reloads with zero downtime, health checks, circuit breakers, rate limiting, and request/response manipulation. The server can also act as a file server with automatic directory browsing, markdown rendering, and template processing.

For developers, Caddy offers a JSON API for dynamic configuration changes, making it perfect for containerized and orchestrated environments. Whether you're running a simple static site, a complex microservices architecture, or anything in between, Caddy provides the tools you need with a delightful developer experience.

Key Features

Automatic HTTPS

Automatic SSL/TLS certificate obtainment and renewal from Let's Encrypt with zero configuration

Simple Configuration

Human-readable Caddyfile format that's easy to write and maintain, or JSON for programmatic control

HTTP/2 & HTTP/3 Support

Native support for HTTP/2, HTTP/3 (QUIC), WebSocket, gRPC, and other modern protocols

Reverse Proxy & Load Balancing

Advanced reverse proxy with load balancing, health checks, circuit breakers, and active/passive failover

On-Demand TLS

Issue certificates on-demand for SaaS platforms with thousands of custom domains

Zero-Downtime Reloads

Gracefully reload configuration without dropping connections or causing downtime

Use Cases

• Static Website Hosting: Serve static sites with automatic HTTPS and HTTP/2 push
• Reverse Proxy: Proxy requests to backend services with automatic HTTPS and load balancing
• API Gateway: Route and load balance API requests with rate limiting and authentication
• SaaS Platforms: On-demand TLS for thousands of customer domains
• Microservices: Service mesh, service discovery, and inter-service communication
• File Server: Serve files with directory browsing, templates, and markdown rendering
• Development Server: Local development with automatic HTTPS (trust local CA)

Installation Guide

Installation on Ubuntu:

# Install Caddy from official repository
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https curl
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

# Or download binary directly
curl -o caddy 'https://caddyserver.com/api/download?os=linux&arch=amd64'
chmod +x caddy
sudo mv caddy /usr/local/bin/

# Verify installation
caddy version

Quick Start - Static Site:

# Create Caddyfile
cat > Caddyfile <<EOF
example.com {
    root * /var/www/html
    file_server
}
EOF

# Start Caddy
sudo caddy start

# Or run in foreground
sudo caddy run

Reverse Proxy Example:

cat > Caddyfile <<EOF
api.example.com {
    reverse_proxy localhost:8080
}
EOF

sudo caddy run

Configuration Tips

Basic Configuration (Caddyfile):

# Simple static site with automatic HTTPS
example.com {
    root * /var/www/html
    file_server
    encode gzip
}

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

# Multiple backends with load balancing
app.example.com {
    reverse_proxy localhost:8080 localhost:8081 localhost:8082 {
        lb_policy round_robin
        health_check /health
    }
}

# SPA with fallback
spa.example.com {
    root * /var/www/spa
    try_files {path} /index.html
    file_server
}

Advanced Features:
- Rate Limiting: Limit requests per client
- Authentication: Basic auth, JWT validation
- Compression: Automatic gzip/brotli
- Templates: Server-side includes and rendering
- Request/Response Manipulation: Headers, rewrites
- Metrics: Prometheus-compatible metrics
- Logging: Structured JSON logging

Performance Tips:
- Enable HTTP/2 push for critical resources
- Use encode gzip zstd for better compression
- Configure file_server {precompressed gzip br} for pre-compressed assets
- Use header directive to set caching headers

Technical Requirements

System Requirements

Memory: 256MB RAM

Caddy

Deployment Info

Overview

Key Features

Use Cases

Installation Guide

Configuration Tips

Technical Requirements

System Requirements

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Overview

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