ns1.olitt.org has no CNAME records.
Question and response
Question
dig ns1.olitt.org. NS
Answer
The response has no answer records.
Authority
olitt.org. 1449 SOA hugh.ns.cloudflare.com. dns.cloudflare.com. 2397845207 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0