A Domain name is an identification label that identifies Internet Protocol (IP) resources. Domain names are formed by the rules and procedures of the Domain Name System (DNS). Domain names are organized in levels (subdomains) of the DNS root domain. The first level set of domain names are the top level domains (TLDs), including general top level domains (gTLDs) and country code top-level domains (ccTLDs). The second level and third level domain names create other publicly accessible Internet resources. For example, in “mail.yahoo.com,” “.com” is the first level domain name, “yahoo.com” is the second level, and “mail.” is the third level. The Internet Corporation for Assigned Names and Numbers (ICANN) manages the top-level development and architecture of the Internet Domain name space.
The fundamental purpose of a domain name is to provide easily recognizable and memorable names to Internet resources that have numeric addresses. Hence, it is understandable where trademark issues arise. The disputes that arise over domain names are based on the second level domain name because they are what people remember most of all in a domain name address.