Invalid domain attempting to create a new campaign

[chill986]

I am unable to create a new campaign with the domain mccdental.com. I get the following error message:

Ooops. Our crawlers are unable to access that URL - please check to make sure it is correct. If the issue persists, check out this article for further help.

I don't see any issues in the robots.txt - here are its contents:
User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

I ran the "GET" and "HEAD" command per the https://moz.com/help/guides/getting-started/campaign-setup#frequently-asked-questions instructions - code 200 returned. Help? I need to get this set up as soon as I'm able.

Thanks in advance!

[samantha.chapman]

Hi there Cindy, Sam from Moz's Help Team here!

Just jumping in to let you know that I am about to respond to the ticket we received from you at help@moz.com, so you'll be receiving an email shortly!

[chill986]

Thanks Sam!  This new client maintains his website on an in-house server.  As the relationship develops, we will encourage them to allow us to host the site for him, which will make things much easier.

I've forwarded your email to my colleague - we'll see what can be done to correct the situation!  Thanks again for the fast response!