I haven’t looked at your API but a subtly critical aspect of diagnostics or introspection is being able to query from multiple client locations/resolvers. It’s

I haven’t looked at your API but a subtly critical aspect of diagnostics or introspection is being able to query from multiple client locations/resolvers. It’s really important to be able to disambiguate the “view” different clients have of the same labels. Alternatively, if you’re targeted at direct client use, you may want to allow them to control the edns options, like client subnet, themselves.