Custom Domain Shows Server Cannot Be Found, Netlify Domain Works

Netlify Domain: testsite123s.netlify.app
Custom Domain: ianbuckles.com

When I open the netlify app on the web it works fine but my custom one does not. The DNS is good on Google Domains. Any help is appreciated!

Hey @ibuckssss

I have no trouble accessing ianbuckles.com or www.ianbuckles.com.

However testsite123s.netlify.app is not a valid domain.

With ianbuckles.net, I see it is pointing to Netlify DNS and propagation appears complete. Did you follow the same steps to add this alias as ianbuckles.com? Is there a NETLIFY record for ianbuckles.net in the Domains section of the UI?