What is Domain name?
A domain name is a specific address of a web server, which transfer a visitor to a certain website. An example of a domain name is postaffiliatepro.com. It can be used instead of IP address, which is harder to remember.
It is necessary to choose a right domain name. It has to be easy to remember, easy to say or spell. A domain name has to contain primary keywords, but it has to be short.