ns3.active-dns.com has no NS records.
NS records for this zone are defined at active-dns.com.
NS records for this zone are defined at active-dns.com.
Question and response
Question
dig ns3.active-dns.com. NS
Answer
The response has no answer records.
Authority
active-dns.com. 3600 SOA ns1.cloudns.net. support.cloudns.net. 2015090123 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0