Sat. Jun 22nd, 2024

When addon domain, the following error pops up

“Could not determine the nameserver IP addresses for “”. Please make sure that the domain is registered with a valid domain registrar.”

So what we can do to fix this problem.

After recheck the IPs and pointing the domain, this error won’t get away.  Finally, we got an answer which worked fine to us and how about yours?  Let’s see.


  • Login WHM
  • Click on Server Configuration which is located on the top left hand side and the drop down listing is opened.
  • Click on Tweak Settings.
  • Now look on the right hand side, select Domains tab.
  • Go down to line #5 where Allow unregistered domains is, change the setting.  Mine is OFF as default, then I changed to ON.


  • Now, go back and add the domain to your server.


Hope this tip works for all of you.

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