当在域名注册商处为域名添加DNS服务器时，报错：

We have recorded a request of nameservers’ change of your domain domainname.no.

Requested nameservers:
Server #1 : ns1.dns.com
Server #2 : ns2.dns.com

The change has not been performed due to the following error message:
E12-M1215 Operation can’t be performed – Zonecheck failed
At this time, and according to the technical requirements of the registry, the above nameservers are not ready to host the new domain name. Please ensure as soon as possible that the domain name is properly installed and configured with this tool: http://zonecheck.netim.com/en/

In order to perform this change, please ensure that you have requested the correct nameservers or contact your host / system administrator to correct the issue.
Then you can request a new nameserver change.

解决方案：

.NO Registry performs a predelegation technical check.

It means your zonefile for the domain socoinno.no must be installed on the requested nameservers:
ns1.dns.com
ns2.dns.com

prior to the redelegation request.

也就是说，先在DNS服务器服务商处添加域名，再在域名注册商处为域名添加DNS服务器。