On-Demand TLS ask renewals

Just a quick question regarding how On-Demand TLS ask renews certs, does it use the same url to see if it is still valid or is there anything else I should be doing, this is for a custom saas application that users can add their own domain.

Thanks

All it does is Caddy will make an HTTP GET request to that URL with ?domain=example.com in the query string before renewing or obtaining (same thing, really) any certificate on-demand; and if the response is 200 OK, then it will be allowed. Very simple. :slight_smile: