Re: Strange failure on XN--MGBA3A4F16A.

[A. Schulze via Unbound-users]

John R Levine via Unbound-users:

But where'd Google's answers come from?

this is the delegation

;; AUTHORITY SECTION:
XN--MGBA3A4F16A.        172800  IN      NS      a.nic.ir.
XN--MGBA3A4F16A.        172800  IN      NS      ns.irnic.ir.

and these are autotitative data

;; ANSWER SECTION:
XN--MGBA3A4F16A.        1439    IN      NS      b.nic.ir.
XN--MGBA3A4F16A.        1439    IN      NS      a.nic.ir.
XN--MGBA3A4F16A.        1439    IN      NS      ir.cctld.authdns.ripe.net.

hence, the difference.

Andreas