ns2.domain99.com has no NS records.
NS records for this zone are defined at domain99.com.
NS records for this zone are defined at domain99.com.
Question and response
Question
dig ns2.domain99.com. NS
Answer
The response has no answer records.
Authority
domain99.com. 600 SOA ns1.svenskadomaner.se. admin.svenskadomaner.se. 2026021703 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0