Hostname
A hostname (alternatively spelled, a host name; also known as a domain name, host device name, host device alias, and, with regard to the Internet, Internet host name; hereinafter, the Name) is a humanly readable label or alias that is assigned to a particular IP address or another identification for a host device that is a part of the Internet or another computing network.
This label is used to identify the IP address of the needed device in various forms of electronic communication, such as the World Wide Web.
The Name is the central part of any URL.
Domain name (hostname). The name of a website or other web resource, such as "cnmcyber.com", especially on the Internet that human beings may recognize easier than IP addresses. Web browsers and other devices work with IP addresses, but these addresses are difficult for humans to remember and reproduce; for them, domain names are created. In DNS zones, domain names are bound to either an IPv4 address, or an IPv6 address, or both.
