Specify domain location determination URL
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKLM
Software\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator\CorporateConnectivity Options
DomainLocationDeterminationUrl text Description
This policy setting enables you to specify the HTTPS URL of the corporate website that clients use to determine the current domain location (i.e. whether the computer is inside or outside the corporate network). Reachability of the URL destination indicates that the client location is inside corporate network; otherwise it is outside the network.