relentless.fastservers.net has no CNAME records.
Question and response
Question
dig relentless.fastservers.net. NS
Answer
The response has no answer records.
Authority
fastservers.net. 10455 SOA ns1.datapipe.net. admin.fastservers.net. 2020040710 10800 3600 604800 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0