when you remove a subdomain from your webserver and then it refuses to renew them for the entire domain Most Let's Encrypt clients have the ability to automati

when you remove a subdomain from your webserver and then it refuses to renew them for the entire domain Most Let's Encrypt clients have the ability to automatically exclude any subdomains that have stopped working. However they don't enable this by default because they have no way of knowing if the domain is really gone or if a janitor just happened to unplug the server to plug in their vacuum when the renewal was attempted.