ns02.cpserver.net has no NS records.
NS records for this zone are defined at cpserver.net.
NS records for this zone are defined at cpserver.net.
Question and response
Question
dig ns02.cpserver.net. NS
Answer
The response has no answer records.
Authority
cpserver.net. 86400 SOA ns01.cpserver.net. hello.cpserver.net. 2026022500 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0