spf.jcwdns.com has no NS records.
NS records for this zone are defined at jcwdns.com.
NS records for this zone are defined at jcwdns.com.
Question and response
Question
dig spf.jcwdns.com. NS
Answer
The response has no answer records.
Authority
jcwdns.com. 14400 SOA cdns1.cpt.wa.co.za. hostmaster.jcwdns.com. 2019062400 14400 7200 3600000 14400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0