Domain Name Extension It. Social causes and groups. Series of characters written after domain name is called a domain extension.
The dot-net domain extension is derived from the word network. Let us understand it in a better way with an example. This is an open TLD.
Domain name extensions always consist of the top-level domain and sometimes a second-level domain.
An easy example of this is COM or ORG. To check if a domain name is available just type it in GoDaddys search bar and well tell you immediately if someone else already owns it. For adult things like buying real estate and raising children. Domain name extensions are the last part of a domain name.