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Let me step back a couple of paces ...
There are basically four common ways to reach any web site:
Generally speaking, only one of the four is considered the "active" / "main site".
The other three are expected to direct the browsing client onward in that direction.
The HTTP sites forward to the HTTPS sites
And the base domain forwards to "www" [or in the other direction]
In your case, the base domain is being hosted by a parking page site, so it can't be set to forward and it doesn't support HTTPS.
So that covers two of the four.
The other two, the insecure should forward to the secure [but it doesn't (yet)].
Cover all four cases (as best you can).
They may involve separate providers.
May require you to update the HTML or add an .htaccess file.
[YMMV - speak with the providers about what you want and they may be able to help or point you in the right direction]
But technically you already do have a validated site. https://www.davidaste.com/