_spf.etaika.fi has no NS records.
NS records for this zone are defined at etaika.fi.
NS records for this zone are defined at etaika.fi.
Question and response
Question
dig _spf.etaika.fi. NS
Answer
The response has no answer records.
Authority
etaika.fi. 900 SOA ns-1142.awsdns-14.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0