spf.pery.com has no CNAME records.
Question and response
Question
dig spf.pery.com. NS
Answer
The response has no answer records.
Authority
pery.com. 733 SOA dns4.pery.com. certmgmt.pery.com. 999 21600 3600 1728000 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0