Measuring DNS health, security

In early February, about fifty top DNS experts, engineers and practitioners assembled at an invitation-only symposium in Japan to talk about an esoteric but significant challenge to the future of the Internet: measuring the health of the domain name system (DNS). Determining the status of critical infrastructure of any kind can be difficult, but DNS is doubly so because it is a distributed infrastructure not run by one or even a handful of operators – there are thousands of “important” DNS operators.