Roaming home page
A roaming user (also known as a remote or offsite user) is someone who is connecting to the web from an IP address that has not been configured as a proxied connection on any policy.
When roaming users try to proxy through the cloud service from an unknown IP address, the service does not know which policy to apply to them and must therefore serve a non-policy specific notification page asking them to identify themselves. This is a global page and cannot be customized.
Once a user is logged on with a unique user ID, the cloud service knows which policy to apply to the user.