Network - Top Level Domain (Tld) - Suffix

Map Of Internet 1973

About

Top Level Domain is the name label at the highest level in the hierarchical Domain Name System of the internet network.

As a domain name is a hierarchy of name separated by a point, it is the last part of the fully qualified domain name.

It's also known as the public suffix.

Some examples of public suffixes are:

  • .com
  • .co.uk

Arpa was the first top-level domain name defined for the Internet.

Example

in the domain name www.example.com, the top-level domain is com.

Management

List

https://publicsuffix.org/list/

Type

Country Code

country code TLC ccTLDs (Country-Code Domain Names). Some countries or geographical regions, such as .us (United States) and .me (Montenegro), sponsor country-code top-level domain names (ccTLDs). These two-letter domain name extensions have special rules and requirements. More … ccTld on godaddy)

Reserved top-level domains

RFC 6761 reserves the following four top-level domain names to avoid confusion and conflict. Any such reserved usage of those TLDs should not occur in production networks that utilize the global domain name system:

  • example: reserved for use in examples
  • invalid: reserved for use in obviously invalid domain names
  • localhost: reserved to avoid conflict with the traditional use of localhost as a hostname
  • test: reserved for use in tests

Documentation / Reference





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