I have reviewed this document as part of the security directorate's
ongoing effort to review all IETF documents being processed by the
IESG. These comments were written primarily for the benefit of the
security area directors. Document editors and WG chairs should treat
these comments just like any other last call comments.

The summary of the review is Ready. This draft was very straightforward
to read, and adding a new kind of domain terminal with a text record
does not impact security in any unpredictable ways.