https://support.mikrotik.com/ provides SSL_ERROR_BAD_CERT_DOMAIN
Is used the certificate valid only for “cloudcorerouter.com”
Certificate issued to: CN=cloudcorerouter.com
But which CCR is it, 2216 or something even newer? 
For what are you using that domain?
support.mikrotik.com
I think is sufficently self-explanatory…
Before mar/20/2022 it redirect to https://mikrotik.com/support
I have one bookmark for it and do not longer work for certificate error.
There’s no link pointing to that subdomain, update your bookmarks.
Do you really believe that I am unable to update a bookmark or “work around” the problem in some way?
@Znevna, as usual you do not see the big picture,
making that mistake appear is reputational damage.
Since this is a dns, web server or reverse proxy configuration issue, I would open a ticket to get someone internally to fix.
We all know you're a stubborn little piece of something, keeping an old subdomain bookmarked even if it only redirected somewhere else until recently as you've said yourself proves that.
File a bug report that your old bookmarks don't work anymore.
There's no big picture.
This is the big picture
https://wallpaperaccess.com/full/5114011.jpg
Nope, that's not you ... wrong colour of eyes.
Ufff… 