DNS - Domain Name System
The domain name service (DNS) is provided by Joker.com, your internet provider or your web hosting company, and it is essential if you want to actually use your domain.
Our free name service is included in all Joker.com domains.
The name service makes your domain "work": so that your website can be accessed, and your emails are routed correctly into your inbox. The DNS is responsible for "translating" your domain name into an IP address, that is understandable by the networks.
Please find more information in chapter 1.9 Nameservice or also on Wikipedia.