What is a Domain Extension?

An extension is the final part of a domain name following the period, such as “.com”, “.net,” and “.org.” There are over 1,000 different extensions on the internet that have been assigned by the Internet Corporation for Assigned Names and Numbers (ICANN).

More About Domain Extensions

Extensions help users navigate the internet, and they are critical aspects of the Domain Name System (DNS). Websites can also use them as a marketing tool. However, people typically use extensions to categorize websites.

For example, the extension “.edu” is used for educational websites and “.gov” for government websites. The most popular extension, “.com” was originally designed for commercial websites. However, over time, “.com” became the go-to for any type of website.

Extensions can also indicate the domain’s country of origin, such as “.au” for Australian websites and “.uk” for sites in the United Kingdom. This classification is referred to as a Country Code Top-Level Domain (ccTLD).

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