_spf.eastlink.ca has no NS records.
NS records for this zone are defined at eastlink.ca.
NS records for this zone are defined at eastlink.ca.
Question and response
Question
dig _spf.eastlink.ca. NS
Answer
The response has no answer records.
Authority
eastlink.ca. 900 SOA ns3.eastlink.ca. dnsadmin.eastlink.ca. 1679 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0