A domain translates names into IP addresses, which browsers use to load internet pages. (e.g., "https://crossid.io")
By default login and registration boxes are hosted under the
Adding a custom domain let you serve the boxes under your own domain.
So instead of a URL such
https://acme.us.crossid.io/auth/login user will be redirected to
This has several advantages:
- Branding, your users don't leave your own domain.
- Easy migration between identity services.
- Security and cookie data sharing.
For instructions, see Custom Domains How-To