backup.ns.serverhs.org has no CNAME records.
Question and response
Question
dig backup.ns.serverhs.org. NS
Answer
The response has no answer records.
Authority
serverhs.org. 10800 SOA ns1.webhs.org. reports.webhs.support. 2026021900 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0