_domainkey.primaryns.com.ua has no NS records.
NS records for this zone are defined at primaryns.com.ua.
NS records for this zone are defined at primaryns.com.ua.
Question and response
Question
dig _domainkey.primaryns.com.ua. NS
Answer
The response has no answer records.
Authority
primaryns.com.ua. 86400 SOA primaryns.kiev.ua. dukegm.gmail.com. 2025050201 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0