ns2.dnsbolt.com has no NS records.
NS records for this zone are defined at dnsbolt.com.
NS records for this zone are defined at dnsbolt.com.
Question and response
Question
dig ns2.dnsbolt.com. NS
Answer
The response has no answer records.
Authority
dnsbolt.com. 86400 SOA ns1.dnsbolt.com. Postmaster.dnsbolt.com. 337728744 10800 3600 172800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0