crist.yanegm.com has no NS records.
NS records for this zone are defined at yanegm.com.
NS records for this zone are defined at yanegm.com.
Question and response
Question
dig crist.yanegm.com. NS
Answer
The response has no answer records.
Authority
yanegm.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1772533599 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0