Domain hosting is similar to web hosting. Every website on the Internet needs to be hosted somewhere, so when a company hosts your website, it also hosts the domain where your site is located. Domain names are used to identify one or more IP addresses. For example, the domain name microsoft.com represents about a dozen IP addresses. Domain names are used in URLs to identify particular Web pages. a domain is A subnetwork made up of a group of clients and servers under the control of one central security database. Within a domain, users authenticate once to a centralized server known as a domain controller, rather than repeatedly authenticating to individual servers and services.
Unique domain names
All our customers have their own unique domain name, hence as a customer at One.com your domain name is your website address. When you want to visit your site, you just type in your domain name for example "example.com" in your browser.