• Registry

last modified August 11, 2011 by tomlowenhaupt

The design of the .nyc registry technology and its alignment with registrars is the focus of this page.

How It Works


 (Note: This graphic needs improvement.)



























A domain name registry is a database of all domain names registered in a top-level domain. A registry operator, also called a network information center (NIC) or back end provider, is the part of the Internet's Domain Name System (DNS) that keeps the database of domain names, and generates the zone files which convert domain names to IP addresses.

Each NIC is an organization that manages the registration of Domain names within the top-level domains for which it is responsible, controls the policies of domain name allocation, and technically operates its top-level domain. It is potentially distinct from a domain name registrar. [1]

Domain names are managed under a hierarchy headed by the Internet Assigned Numbers Authority (IANA), which manages the top of the DNS tree by administrating the data in the root nameservers.

The terms used to describe those using or managing domain names is quite confusing, as follows:

  • Registry - The set of policies and computer that maintains the list of domain names available for issuance.
  • Registrar - The organizations that allocate or sell domain names that are available from the registry. For example, Verisign Inc. has responsibility for the .com registry and PIR has responsibility for the .org registry.
  • Registrant - Domain name users or purchasers, that is, those that own the rights to use names such as JoesPizza.nyc and AlbertsGraphics.nyc.
  • User - That's an all important term outside the formal DNS structure, but it's the everyday person that accesses the millions of websites such as Google.com and FreePress.org.

The graphic at right depicts the traditional relationship between the user (registrant), the registrar (that issues a name), and registry (that manages the names database) and the ICANN, the global entity that authorizes the use of the .nyc TLD.

In October 2009 the city of New York issues a request for proposals seeking companies to assist it with acquisition of the .nyc TLD and operation of the Registry. Responses were received from several entities. As of March 2011 the city had not made the fundamental decision as to the registry's operation under Standard or Community policies. See this blog post.

Registry Technology

Traditional registry technology was based on dedicated machines. Today new tech such as cloud based servers are being introduced.

Registry Technology Providers

Traditional providers:

  • Afilias
  • CORE
  • NuStar
  • Verisign

Cloud Based

This new concept 

Key .nyc Pages