ns1.peer1.net has no CNAME records.
Question and response
Question
dig ns1.peer1.net. NS
Answer
The response has no answer records.
Authority
peer1.net. 1098 SOA art.ns.cloudflare.com. dns.cloudflare.com. 2397062560 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0