Domain is a unique website identifier used in URLs. Domain registration allows yearly renewal
.com was introduced in 1985 as a commercial domain. First registered domain was Symbolics.com, sold to XF.com Investments in 2009. Originally intended for government contract work, later evolved to commercial use
.com is most common for for-profit businesses. .info typically used for educational sites. .org preferred by nonprofits and charities. .biz, .net, and .co offer alternative options
.cc domain registrations exceed 2 million, up 50% in past five years. Introduced in 1997 as ccTLD for Cocos Islands. Now used globally as flexible alternative to traditional TLDs
Whois.com shows registered owners for most domain names. Private domain owners' identities remain hidden. Searching Google for "domain name" contact may reveal public records
WHOIS is a domain lookup tool managed by ICANN. ICANN requires accredited registrars to provide WHOIS services. WHOIS database stores information about domain owners and registrants