clyde.pongfood.com has no NS records.
NS records for this zone are defined at pongfood.com.
NS records for this zone are defined at pongfood.com.
Question and response
Question
dig clyde.pongfood.com. NS
Answer
The response has no answer records.
Authority
pongfood.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1773072835 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0