Apex domains cannot have CNAME records.
Facebook
Domain verification
facebook-domain-verification=uhyfdaze7j2hiceqwjkmgc8eqy25fm
Google
Domain verification
google-site-verification=-nUrzJkphjD5irHvaqD6FtxEMWGIDopZ2j0Il83Xvs4
Google
Domain verification
google-site-verification=e2Rcgl5n4-YbaRT23lUvJou7mBeL_xJgripze5EFzaM
Google
Domain verification
google-site-verification=iyir6XucoAo7ZHZ3kB3UWesTYlC8GLyegI40lmTIR1g
Postman
Domain verification
postman-domain-verification=e34beca8334f6be62a4a4d9f9d5f5ff17f4136e808c689f281b4ed3e1921e501347f3f6e5c8c0804833c8f7084d4d80bd935dc606b0abb913bbe15378b8e5fb9
4klnbxh4xjlmqrxjlb9dsm42hm6fn2zz
SERVERHUNTER-24363C91
ian.ns.cloudflare.com
Cloudflare
may.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2396113303
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m