A domain name is the actual name of a website, and every single website has a domain name. To obtain one, you need to purchase it through a domain registrar. Domains can cost anywhere from a few dollars a year to hundreds of thousands of dollars a year, based on the contract and popularity of the domain. Every domain name is actually pointing to an IP (Internet Protocol) address, which is a series of numbers. Because most people can’t remember 10 digits in perfect order, domain names serve as easily-remembered alias for visitors. Probably the best known domain name is google.com, and Google’s IP address is 220.127.116.11… which is easier for you to remember?