Let's Debug

Test result for portman.no-ip.biz using http-01

A validation request to this domain resulted in an HTTP request being made to a port that expects to receive HTTPS requests. This could be the result of an incorrect redirect (such as to http://example.com:443/) or it could be the result of a webserver misconfiguration, such as trying to enable SSL on a port 80 virtualhost.
@0ms: Making a request to http://portman.no-ip.biz/.well-known/acme-challenge/letsdebug-test (using initial IP 216.221.7.112)
@0ms: Dialing 216.221.7.112
@36ms: Server response: HTTP 400 Bad Request

Submitted Mar 20 14:38:09 2023. Sat in queue for 5ms. Completed in 5s. Show verbose information.