Apex domains cannot have CNAME records.
Apple
Domain verification
apple-domain-verification=gaaPjPOiJaga4pqi
Atlassian
Domain verification
atlassian-domain-verification=Jg1ViinABN/YYZbWJdSfPU9TTtmVnpfneheD4L1mYFec7xCFe0b3aaM6UC7h7D3s
Google
Domain verification
google-site-verification=ntHY8X_L0dF2t9kkyKNidmFFjisbXYBU3rq42BH
Google
Domain verification
google-site-verification=OniQf6iwvG5qDoad4UKAMCg-dMBiiEdG28TgUVaRuTE
Microsoft
Domain verification
MS=ms70843715
7litt68711008ermvu50m33jr8
hb12mjn9idtq7h63g8hlfe706h
nitro-verification-code=c2U4ZmUwMjExNTc3ZGFjM2Q=
andy.ns.cloudflare.com
Cloudflare
olga.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2398204373
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m