Multi-domain certificates managed automatically

For anybody needing to support multiple custom domains (those outside your control) and wildcard domains, you know the verification and management of certificates can be a pain.

Caddy server to the rescue:

I previously had apache setup as the reverse proxy to several different node applications.

In 15 minutes, I have installed a caddy server, turned off apache, and configured it to reverse proxy to the node applications. But the best part is that Caddy then completely and automatically provisions Let’s Encrypt certificates and manages the renewals. Customers can just point their domain to your app, and the Caddy server takes care of the domain validation, etc.