The question remains:
How do I certify domains which run of the same webserver like another domain, means they have the same IP and the second domain redirects through FRAME redirection at Strato.
It works for http, but I do not get Let’s Encrypt to certify this:
domain 1: xxx.de
Certified for xxx.de, mail@xxx.de
domain 2: yyy.de
should be certified for yyy.de, mail@yyy.de
I tried certification also for xxx.de, mail@yyy.de, addition name: yyy.de
Does also not work!
Regards,
Matis