The domain is your address online, and the name that customers type in when they want to find your business. It's the 'Domain.com' in the URL in the address bar at the top of this page.
What does domain name URL mean?
A URL (aka Universal Resource Locator) is a complete web address used to find a particular web page. While the domain is the name of the website, a URL will lead to any one of the pages within the website.