Validation failure signature crypto failed

[Casey Deccio]

> On Jan 25, 2017, at 3:35 AM, Jac Backus via Unbound-users <unbound-users at unbound.net> wrote:
> 
> Why does dnsviz not show the TXT record without selecting it in Advanced?

It was simply a choice of efficiency.  By default queries for MX, TXT, NS, and SOA are only issued if the name is a zone apex because it is more common to see those records at a zone apex.  It would be a bit slower and require more storage to keep track of the less common case.  The option of specifying TXT (and others) allows some flexibility beyond the defaults.

Casey