Definition of Top Level Domain
A Top Level Domain or TLD is the last part of an Internet domain name following the last dot. For instance, the TLD for www.web1marketing.com is "com" while the TLD for www.nasa.gov is "gov".
Top level domains can designate special types of organizations (gov = government), countries (uk = United Kingdom), and types or organizations (com and org).
TLD's are administered by the Internet Corporation for Assigned Names and Numbers (ICANN).
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