spf.sae.org has no NS records.
NS records for this zone are defined at sae.org.
NS records for this zone are defined at sae.org.
Question and response
Question
dig spf.sae.org. NS
Answer
The response has no answer records.
Authority
sae.org. 900 SOA ns-1714.awsdns-22.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0