NPM resolves subdomains correctly, but not the main domain

[viktak]

I just set up NPM on a VPS, but I ran into the following issue:

All the subdomains resolve correctly, i.e. I can visit diy.viktak.com, but I cannot visit viktak.com. In fact, what I noticed is, that if I enter http://viktak.com, it works, but if I enter https://viktak.com, it doesn't. Since that is the default of most current browsers, it is a problem for me.

My domain is at Cloudflare. I tried disabling all caches, entered Development mode, but no luck...

Any idea what might have gone wrong?

[viktak]

In fact, all the examples everywhere (that I found) only show how to redirect subdomains. Maybe my assumption that you can also forward the main domain itself is wrong? If it can be done, how?

[viktak]

Well, I figured it out myself:
I just had to create a Redirection host rather than a Proxy host..