I have an enterprise site and I want to access it from user-friendly domain such as www.domain.org and I also want to access enterprise site pages with www.domain.org/pages/about. We dont want to see our portal url. I found an example from your ArcGIS Hub example site. This one appears to find a way to solve this problem. I think this problem cannot be solved with iFrame since all the pages will be accessed through one link. This issue is really important for our organization. Thank you so much.