Where can I read Site Name information?

I've been relying on reading /Library/Preferences/OpenDirectory/DynamicData/Active Directory/DOMAIN.plist to retrieve the site name information for a host bound to Active Directory.

However, according to FB9063984, the DynamicData directory isn't always populated and there is no guarantee as to what information it will contain even when the files are present.

Is there anywhere else the Site Name for a host can be retrieved?