Neustar has a vested interest in ensuring that the domain name system is as secure and stable as possible. We have been operating top level domains (TLDs) for more than a decade, and we intend to provide the same level of service as the back-end registry provider for more than 350 applicants for the new generic TLDs that we hope will become available in the coming months.
As such, we took the opportunity to respond to a recent proposal by ICANN's staff to mitigate the risk of "collision," between new applied-for gTLDs and existing private uses of the same strings.
The Collision Issue
First, a little history. In 2010, ICANN's Stability and Security Advisory Committee (SSAC) identified the potential for "name collisions" between "second-level labels" intended to be used within a private namespace (e.g., "mail," "home," "corp," etc.) and new gTLDs. Sometimes these names appear "outside of their scope" — meaning, in the global Internet DNS. To the extent these names correspond to new gTLDs, the potential for such collisions exist.
The SSAC issued a report in March 2013 recommending several steps to mitigate potential collision issues. In August, ICANN released a self-commissioned study that ranked each of the applied-for gTLD strings based on the frequency with which they appeared in root servers in 2012 and 2013 and, thus, the potential likelihood that a DNS collision could occur.
ICANN's consultant then designated about 1,000 strings (or approximately 80 percent) as "low-risk", two strings as "high risk" (.home and .corp), and about 150 strings (or 20 percent) as "uncalculated risk".
Based on the findings of the study, ICANN staff proposed a mitigation plan to reduce the potential harmful effects of name collision. More specifically:
Neustar recognizes that ICANN's fundamental mission turns on promoting innovation in the domain name system through competition while preserving the security and stability of the DNS. After careful review of the report on domain name collisions, Neustar agrees that it is important to address potential issues head on with regard to the new gTLD launches. However, we also believe that ICANN's response should be more pro-active, better reflect the need to execute with urgency, and take into account mitigation efforts already underway.
In light of key concerns and based on real-world experience, Neustar has made the following recommendations to ICANN:
Neustar urges ICANN to pursue the alternative approach to mitigation outlined in the NTAG response, which is both pragmatic and sufficiently conscious of the security and stability issues presented by new TLDs.
For a complete look at Neustar's recommendations, download our response here.
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