Domain Name Services

We operate and maintain a number of key aspects of the DNS, including the root zone, and the .int and .arpa domains.

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  The DNS Root Zone

  The root is the upper-most part of the DNS hierarchy, and involves delegating administrative responsibility of “top-level domains”, which are the last segment of a domain name.

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  .INT

  The .int top-level domain, designed for the sole use of cross-national organisations, such as treaty organisations, that do not naturally fit into a specific country’s top-level domain.

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  .ARPA

  The .arpa domain is used internally by Internet protocols for purposes not designed to be directly accessed, as defined in various technical standards.

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  IDN Practices Repository

  A repository of permissible characters for different languages and writing systems provided for registration by different domain registries, helping to foster internationalization.

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  Root Key Signing Key (DNSSEC)

  The Root Key Signing Key provides verification of the DNSSEC-signed root zone, administered through public key signing ceremonies and serving as the DNS trust anchor.

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  Reserved Domains

  Specially designated domains that are held to serve specialized purposes, such as avoiding conflicts with potential real-world usage.