New Landing Page Domain Shows Marketo 404 Page

Issue

Issue Description
After following the set up directions for a domain alias for a new landing page domain, the new domain redirects to a Marketo 404 page.

The instance has SSL for Landing Pages.
 

Solution

Issue Resolution
Contact Marketo Support and request that the new domain be added to your SSL certificate.

If this has been done, they will be able to help you troubleshoot further.

Who This Solution Applies To
SSL for Landing Pages