View source for The Domain Name System

===[[Top-Level Domain|Top-Level Domains]]===
*The DNS maintains a database of top-level domains (TLDs) that can be accessed via the Internet. Top-level domains fall into three broad categories: 
**[[GTLD|generic TLDs]] (gTLDs);
**[[CcTLD|country code TLDs]] (ccTLDs); and
**[[Internationalized Domain Name|internationalized domain names]] (IDNs)
*[[Registry]] operators maintain the database of registrations for a particular TLD.
*[[Registrar|Registrars]] allow [[registrant|registrants]] to register a domain name.