I got this same message off of a duplicate of my main site. The duplicate is in a directory of the main site and that error message does not appear on the main site. It's a scan of the new main-site.com/duplicate-site that gives the DNS error message. In the error box at the scan page it says: "New DNS records: _________" (i.e., blank).
Can I safely ignore that "Your DNS records have changed" warning?
Is this still recommended to just disable that scan option?