gns1.mapfrebhd.com.do has no NS records.
NS records for this zone are defined at mapfrebhd.com.do.
NS records for this zone are defined at mapfrebhd.com.do.
Question and response
Question
dig gns1.mapfrebhd.com.do. NS
Answer
The response has no answer records.
Authority
mapfrebhd.com.do. 60 SOA gns1.mapfrebhd.com.do. hostmaster.mapfrebhd.com.do. 1334 900 600 86400 60
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0