Final answer:
The information listed after the period in a domain name is called the domain extension, also known as the top-level domain (TLD). The domain extension indicates the type of organization or country associated with the website.
Step-by-step explanation:
The information listed after the period in a domain name is called the domain extension. It is also known as the top-level domain (TLD). The domain extension is the last part of a domain name and indicates the type of organization or country associated with the website.
For example, in the domain name 'www.example.com', the domain extension is 'com', which stands for commercial websites. Other common domain extensions include '.org' for non-profit organizations, '.edu' for educational institutions, and '.gov' for government websites.
The domain extension helps users identify the purpose or nature of a website and can be useful in determining the credibility or relevance of the information provided on the site.