Trying to Verify if My Site is a Qualified Custom Domain


I’m trying to ascertain whether I’ve correctly setup my domain,, is setup correctly as a CUSTOM domain. I’m very new to this technology, and admittedly having lots of struggles understanding exactly what to do. I’ve done everything I can do that looks like I should logically do (if that makes sense), but my platform, NicePage still doesn’t show that I have a CUSTOM domain, only a sub-domain of their platform. I have 2 screenshots of your DNS app, but I don’t see any Attachment icons to send them. Please advise?