DNS is an acronmyn for domain name system. DNS servers translate the easy to remember 'domain names' like cj-hosting.com into their true such as 18.104.22.168. If the could not be found during a DNS lookup an error is returned in your browser.
Depending on the server your web site is on, the nameservers for CJ Website Hosting are either:
To find out which, please login to Account Control
to find out.