How to change nameservers?
For domains in Zone registrar, you can change nameservers from “My Zone” control panel by clicking on your domain name from Services overview window
In the next window, click on “DNS Servers” or on the Pencil icon from “Nameservers” option.
Nameserver change will propagate in 1-2h in the nearest networks, 24h around the world. After this time, all DNS records need to be changed or modified through your new Nameserver service provider’s environment.