Advertising protection
Two fields, always both present, and the second is the one that matters.
ad_protected
— may this company be contacted for marketing?
ad_protection_known
— do we actually know?
Read both, or you will break the law.
Denmark publishes a reklamebeskyttelse flag. Norway does not: its opt-out lives in a separate
reservation register we do not consume. So every Norwegian company comes back as
ad_protected: true, ad_protection_known: false — protected, because we do
not know otherwise. Treating an unknown as permission is the one mistake this field exists to prevent.