A domain is a named collection of related resources on the Internet. Each domain is associated with a specific IP address, which allows it to be located on the Internet. Domains are used to identify websites, and are typically organized hierarchically, with the most general category at the top and the most specific at the bottom.
The top-level domain (TLD) “com”, which indicates that this is a commercial website
The second-level domain “example”, which is specific to this particular website
The subdomain “www”, which stands for “world wide web” and is often used to indicate the main web server for a website
In this example, “com” is the top-level domain, “example” is the second-level domain, and “www” is the subdomain.
There are many different top-level domains, including “com” for commercial websites, “gov” for government websites, “edu” for educational institutions, and “org” for non-profit organizations. There are also country-specific top-level domains, such as “uk” for the United Kingdom and “jp” for Japan.