Is it possible to use Caddy with Cloudflare to implement a load balancer?

Yes, Caddy can be used as a load balancer in conjunction with Cloudflare. You can configure Caddy to distribute traffic across multiple backend servers. This is typically done using Caddy's `reverse_proxy` directive with multiple backend server addresses. Cloudflare's CDN and DDoS protection will apply to the traffic coming to Caddy, while Caddy distributes it to the appropriate backend servers. Proper configuration is needed to ensure health checks and failover mechanisms are in place.