monitor.eduroam.org has no CNAME records.
Question and response
Question
dig monitor.eduroam.org. NS
Answer
The response has no answer records.
Authority
eduroam.org. 3562 SOA ns1.surfnet.nl. dns-beheer.surf.nl. 2026030501 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0