gns0.blackspider.com has no NS records.
NS records for this zone are defined at blackspider.com.
NS records for this zone are defined at blackspider.com.
Question and response
Question
dig gns0.blackspider.com. NS
Answer
The response has no answer records.
Authority
blackspider.com. 3600 SOA ns-a.blackspider.com. hostmaster.blackspider.com. 2025102100 3600 600 2419200 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0