host-88-217-159-61.customer.m-online.net has no CNAME records.
Question and response
Question
dig host-88-217-159-61.customer.m-online.net. NS
Answer
The response has no answer records.
Authority
customer.m-online.net. 1193 SOA ns1.m-online.net. hostmaster.m-net.de. 2021090801 14400 1800 1209600 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0