esa2.blc.fi has no NS records.
NS records for this zone are defined at blc.fi.
NS records for this zone are defined at blc.fi.
Question and response
Question
dig esa2.blc.fi. NS
Answer
The response has no answer records.
Authority
blc.fi. 38400 SOA ns1.blcnet.fi. hostmaster.blcnet.fi. 2026031201 21600 3600 691200 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0