Quick answer: Caddy is a reverse proxy with automatic HTTPS – point DNS, save Caddyfile, done. No Certbot needed.
Minimal Caddyfile
app.yourdomain.com {
reverse_proxy localhost:3000
}Related
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Frequently asked questions (FAQ)
Caddy vs Traefik vs nginx?
Caddy: easiest HTTPS (auto-TLS). Traefik: great with Docker labels. nginx: max control, more config. Solo devs often prefer Caddy.
Do I need Certbot with Caddy?
No. Caddy obtains and renews Let's Encrypt certs automatically once DNS points to the server.
Caddy with Docker?
Yes: image caddy:2, ports 80/443, volumes for Caddyfile and caddy_data (certificates).
Multiple apps behind Caddy?
One block per domain in the Caddyfile with reverse_proxy to localhost:PORT or container name.
SSL not issuing?
Check DNS A record, port 80 open (HTTP-01), nothing else binding 80/443.