spf4.ucdavis.edu has no NS records.
NS records for this zone are defined at ucdavis.edu.
NS records for this zone are defined at ucdavis.edu.
Question and response
Question
dig spf4.ucdavis.edu. NS
Answer
The response has no answer records.
Authority
ucdavis.edu. 900 SOA ns0105.secondary.cloudflare.com. netadmin.ucdavis.edu. 118890250 10800 300 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0