136.91.153.160.host.secureserver.net has no CNAME records.
Question and response
Question
dig 136.91.153.160.host.secureserver.net. NS
Answer
The response has no answer records.
Authority
153.160.host.secureserver.net. 3180 SOA ans01.domaincontrol.com. dns.jomax.net. 2025090900 26800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0