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The DSN Root Zone Management System (RZM) is the automated system used to process change requests for TLDs [1] and to delegate new gTLDs once they have passed PDT[2].


It was originally created to process change requests more efficiently and was launched July 21, 2011 by ICANN, Verisign, and NTIA. [3] Automating the previously manual process provided the additional benefits of allowing more transparency and decreasing processing time. [1]

New gTLD system

In the new gTLD application process, once an applicant has received their delegation token from IANA, the applicant can enter it on IANA's Delegate a New Generic Top-Level Domain page in order to assume "operational responsibility" of the new gTLD [2]. According to a statement by ICANN, Verisign, and NTIA, RZM can process "at least 100 new gTLDs per week." [4] However, there was some apprehension that Verisign would not delegate new gTLDs due to stability concerns. [5] This statement has been largely debunked. Despite Verisign's ongoing concerns over stability, it has been delegating new gTLDs. [6][7]


  1. 1.0 1.1
  2. 2.0 2.1;jsessionid=573581408146FD71B45A8447A52AF099
  3. Sokolova, Nadia. RZM Is 1 Year Old.
  4. Murphy, Kevin. ICANN, Verisign, and NTIA 'Ready for 100 new gTLDs Per Week'
  5. Murphy, Kevin. NTIA Alarmed as Verisign Hints that It Will Not Delegate New gTLDs
  6. Murphy, Kevin. German Geo Ruhr Enters the Root, 11 Dec. 2013
  7. Kane, Pat. Verisign Delegates Four New gTLDs to the Root Zone, 23 Oct. 2013