Overview#

Top-Level Domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet.

Top-Level Domains were originally defined in RFC 920 as: Initial Set of Top-Level Domains (TLD):

• .arpa- Temporary The current ARPA-Internet hosts.
• .gov - Government, any government related domains meeting the second level requirements.
• EDU - Education, any education related domains meeting the second level requirements.
• COM - Commercial, any commercial related domains meeting the second level requirements.
• MIL - Military, any military related domains meeting the second level requirements.
• .org - Organization, any other domains meeting the second level requirements.
• Countries - The English two letter code (alpha-2) identifying a country according the the ISO Standard for "Codes for the Representation of Names of Countries"

A complete list of IANA Top-Level Domains are maintained at Root Zone Database

Special-Use Domain Names#

Special-Use Domain Names defines DNS Domains with restricted usage

More Information#

There might be more information for this subject on one of the following:

• .org
• Domain Name server
• ISO 3166-1 alpha-2
• ISO 639
• Internationalized Domain Name
• Internet Corporation for Assigned Names and Numbers
• Israel
• Localhost
• Public Interest Registry
• RFC 2606
• RFC 920
• Special-Use Domain Names
• TLD
• Top-Level Domain

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• [#1] - Top-level_domain - based on information obtained 2017-06-13-