spf.lionhead.nl has no NS records.
NS records for this zone are defined at lionhead.nl.
NS records for this zone are defined at lionhead.nl.
Question and response
Question
dig spf.lionhead.nl. NS
Answer
The response has no answer records.
Authority
lionhead.nl. 3600 SOA ns1.lionhead.nl. annelies.lionhead.nl. 1772551717 10800 3600 604800 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0