Caddy Load Balancer Configuration

Caddy's reverse_proxy directive supports multiple upstream backends out of the box. Generate a Caddyfile that distributes traffic evenly and fails over gracefully.

Multiple upstreams

List several upstreams in reverse_proxy and pick a policy.

example.com {
    reverse_proxy 10.0.0.1:8080 10.0.0.2:8080 {
        lb_policy least_conn
        health_uri /healthz
    }
}

Health checks are built in

Caddy supports active health checks with health_uri and health_interval, so failed backends leave rotation without extra software.

Open the Load balancer generator

Frequently asked questions

What is the default load balancing policy?

random. Set lb_policy to round_robin, least_conn, ip_hash and others as needed.

Guides

• Nginx Reverse Proxy Configuration
• Caddy Reverse Proxy Configuration
• Nginx Static Site Configuration
• Caddy Static Site Configuration
• Nginx + PHP-FPM Configuration
• Caddy + PHP-FPM Configuration
• Nginx SSL/TLS Configuration
• Nginx Load Balancer Configuration
• Caddy Load Balancer Configuration
• Nginx Rate Limiting Configuration
• Nginx Security Headers Configuration
• Caddy Security Headers Configuration
• Nginx Gzip Compression Configuration
• Nginx Caching Configuration
• Caddy HTTPS Redirect Configuration
• Nginx WebSocket Proxy Configuration
• Nginx Content-Security-Policy Header
• Block Bad Bots and Scanners in Nginx
• fail2ban for Nginx
• nginx.conf Best Practices
• Nginx Location Regex Tester
• Deploy Nginx Config with GitHub Actions
• Nginx CORS Headers Configuration
• Nginx Cache-Control Headers Configuration
• Nginx 301 Redirect Map Configuration
• robots.txt, Sitemap and security.txt
• Apache .htaccess Configuration
• Docker Compose and Dockerfile Configuration
• systemd Service and Timer Configuration
• Cron Expression Explainer
• SSH Hardening with sshd_config
• Linux Firewall Rules: ufw, nftables and iptables
• Glob Pattern Tester
• Analysing Nginx Access Logs with awk
• Subnet Mask and CIDR Calculator
• VLAN Configuration on Linux
• Static Routes and Policy Routing on Linux
• NAT and Port Forwarding with nftables
• DHCP Server Configuration
• BIND Zone File Example
• WireGuard Server and Client Configuration
• A Simple IP Plan for Your Home Network