nsgdl1.uninet.net.mx has no NS records.
NS records for this zone are defined at uninet.net.mx.
NS records for this zone are defined at uninet.net.mx.
Question and response
Question
dig nsgdl1.uninet.net.mx. NS
Answer
The response has no answer records.
Authority
uninet.net.mx. 900 SOA dnsadm-interno.uninet.net.mx. adm-dns.reduno.com.mx. 11014 14400 3600 604800 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0