Apex domains cannot have CNAME records.
Cisco CI
Domain verification
ciscocidomainverification=2d3e68fbdd35609cf14b19d519feb668d4176ef52bef543a597ba4914c30d51b
Cloudflare
Internal use
ca3-3868a8a8bf33474ba206d2e4e1e9d0fd
Microsoft
Domain verification
MS=ms26366211
Microsoft
Domain verification
MS=ms46544793
_7h17wtgdb09pqt0swmnbsr78c3ekiq6
lvUDa7hnwJV3qJbivemhF8Qbk+3bGDuzmTDDRg/PEINZiaJ7iCD6+L3n/LqywVIJHOyDKxdCi3wuDnEEUTF9WQ==
Zone apex
Start of authority
Email
Serial
2396664716
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
1h 30m