Ok, there is a new certificate (and a new check) - https://check-your-website.server-daten.de/?q=ortmann-media.eu#ct-logs
| Issuer | not before | not after | Domain names | LE-Duplicate | next LE |
|---|---|---|---|---|---|
| Let's Encrypt Authority X3 | 2020-03-25 | 2020-06-23 | ortmann-media.eu, www.ortmann-media.eu - 2 entries | ||
| Let's Encrypt Authority X3 | 2020-03-25 | 2020-06-23 | ortmann-media.eu - 1 entries |
But the certificate with two domain names isn't used, so the www version isn't secure. Ok, not relevant if you use only the non-www version.
The port 4443 is invisible, so it's unknown if this port is configured.
What says
apachectl -S
Can that port talk with Letsencrypt via port 80?
OCSP - Url: http://ocsp.int-x3.letsencrypt.org
must work.