@winfried @nixCraft Certainly thought about it a lot... But validation requires a whole set of related queries and responses, while dig is really best suited to a single query and response - it's basically just a test tool that got out of hand. Every time we've tried glomming more sophisticated things onto it like +trace or +sigchase (which was sort of a validate option), it's never worked very well.
But, delv has a full validating resolver built into it, so it can answer anything named can.
