courseware.nl has no AAAA records.
Apex domains cannot have CNAME records.
Atlassian
Domain verification
atlassian-domain-verification=6dqjP1Ml2KV7gxKmlqCqcoO/5pFwxn36MvVPE6ScPXRbE/P0YsFpYI6Ko5d2YWH9
Atlassian
Domain verification
atlassian-domain-verification=IzDcZ4tVsyub/XaG4yKDGKnYMjenG5R3a7/pEWS4UIWfKObcomZInVDrDEYvI7Fn
Atlassian
Domain verification
atlassian-sending-domain-verification=ede478d7-4f00-476b-95f8-a31d1a191ed1
Digicert QuoVadis
Domain verification
QuoVadis=904ff88c-af96-4e58-b92f-28fe9868d0a9
Google
Domain verification
google-site-verification=_NaIrSnjzke4bFZHvbjenI0QWXeXzEdNwXqjL-2x_yo
Google
Domain verification
google-site-verification=ujLzCYZ49QwSx7duWDLeFwSOe1k9h85jr_KByOJQB-o
Microsoft
Domain verification
MS=ms51977069
Zone apex
Start of authority
Email
Serial
2026021100
Refresh
1d
Retry
30m
Expire
28d
Negative cache TTL
5m