A domain name is defined as a unique set of alphanumeric characters separated by periods and dashes. Domain name servers (DNS) map the name to server IP addresses, so that a domain will resolve to a fixed address.
Once a domain name is registered, the owner can hold the domain, buy hosting and add a website to the domain or park it to earn some extra revenue. It can also be sold to a new party, leased to a company or not re-registered and domain catchers may pick up good domain names to sell on.
You may also see the acronym TLD which stands for top level domain name, which is the domain name itself without any extra folders or subdomains.
The most popular domain name extension is .com followed by .net and .org. In the UK the .co.uk has significant importance too.
Popular domain name extensions excluding country extensions are .info .mobi .boz .asia .me .travel
Domain names are offered through registrar bodies, which include ICANN and Nominet. Domain resellers offer domains for sale, but the transaction will always go back through the governing body. Resellers will offer extra hosting packages and services on top of domain name registration.
You'll find bloggers discussing domain names at sites like
Dot Sauce and Self Made Minds.
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