What is a domain name?
A domain name represents a physical point on the Internet — an IP address. The Internet Corporation for Assigned Names and Numbers (ICANN) governs coordination of the links between IP addresses and domains across the Internet. With this standardized coordination you can find websites on the Internet by entering domain names instead of IP addresses into your Web browser.
What is a second-level domain (SLD)?
A second-level domain (SLD) is the portion of the domain name that is located immediately to the left of the dot and domain name extension.
Example 1: The SLD in coolexample.com is coolexample.
Example 2: The SLD in coolexample.co.uk is still coolexample.
You define the SLD when you register a domain name.
You can use more than one SLD with the same IP address.
