Open edX from Tutor requires at least three DNS entries to work correctly, a primary and two sub domains.
yourdomain.com): This is the primary domain
edx.yourdomain.com: The subdomain to preview a page or course before publishing it
edx.yourdomain.com: The subdomain to construct the course
For example, here are our domains:
Open edX has additional features that use subdomains, such as notes. The feature might use a subdomain like
We recommend creating two entries in your DNS settings so that you don't have to update your DNS settings if you enable a new feature.
*. will forward any subdomain to the IP address. Not all DNS registrars support wildcard DNS records.