0e594899_ublic_cloud___yet_another_blog__Feature
To use a custom domain requires the use of CNAMES or ALIAS records ( if using Route 53) [Azure Blob Storage] To use a custom domain requires the use of CNAMES [GCP Cloud Storage] To use a custom domain requires the use of CNAMES [Feature] 
Custom Domain support
Devops and the Public cloud | yet another blog
Feature