ns1.katapultdns.com has no CNAME records.
Question and response
Question
dig ns1.katapultdns.com. NS
Answer
The response has no answer records.
Authority
katapultdns.com. 329 SOA ns1.katapultdns.com. dns-admin.katapult.io. 1772393995 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0