edge.io.fi has no NS records.
NS records for this zone are defined at io.fi.
NS records for this zone are defined at io.fi.
Question and response
Question
dig edge.io.fi. NS
Answer
The response has no answer records.
Authority
io.fi. 1800 SOA bonnie.ns.cloudflare.com. dns.cloudflare.com. 2398404397 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0