# Custom Origin Domain and MarfeelCDN

Tenants with a custom origin domain (different from the default origin.example.com) can activate MarfeelCDN.

Make sure the desktopBackendAdd flag in the cdn.json file points to the custom origin domain:

{
    "desktopBackendAdd": "origin.tenant.com"
}

See an example on Marfeel GitHub (opens new window).