Domain Name Registrars are organisations that sell and manage the records of ownership of domain names. They are usually commercial enterprises, and they use their position as a licensed registrar to ensure that registrations of top-level domains are accurate.
For those setting up a website (or other types of domain owners), it’s important to set the location of the website’s domain name servers. This can be done by notifying the domain name registrar of any changes made or the set location of a given domain name. This is usually done through the website of the domain name registrar.
