ns1.saruman.net has no CNAME records.
Question and response
Question
dig ns1.saruman.net. NS
Answer
The response has no answer records.
Authority
saruman.net. 5533 SOA ns1.radagast.eu. admin.radagast.eu. 2026021001 28800 1800 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0