www.internap.com has no NS records.
NS records for this zone are defined at internap.com.
NS records for this zone are defined at internap.com.
Question and response
Question
dig www.internap.com. NS
Answer
The response has no answer records.
Authority
internap.com. 600 SOA ns-a.pnap.net. hostmaster.pnap.net. 2020062575 3601 1800 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0