cache01.above.net has no CNAME records.
Question and response
Question
dig cache01.above.net. NS
Answer
The response has no answer records.
Authority
above.net. 230 SOA ns.above.net. hostmaster.above.net. 2025082500 3600 1800 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0