In 2010 ICANN commissioned a study from DNS-OARC to examine the impact of DNSSEC deployment in the root zone, and in particular the effects on clients from the large DNS responses resulting from the use of a Deliberately Unvalidatable Root Zone (DURZ).
The DNS-OARC study drew upon the results of a coordinated data collection exercise by root server operators, with each data collection window timed to coincide with a transition by one or more root servers [TXT, 28 KB] from serving an unsigned root zone to serving the DURZ.
ICANN is publishing this report in order to share its findings with the wider DNS community.
