Apex domains cannot have CNAME records.
Facebook
Domain verification
facebook-domain-verification=y86dhilsn123f21wztepv7922foifo
Google
Domain verification
google-site-verification=57pvV7d-1JHFHLoYb8FaV33F5ctkLNHBFPyvMHXaRvU
Google
Domain verification
google-site-verification=FKr5fpWiIBver8zNoKgbuOqzuWK2YhuIAs6ES0FsDDs
Google
Domain verification
google-site-verification=utwNHqpzAb9T_5tOySABRkCbO-ScK1m-j3GVhv7dM5U
Postman
Domain verification
postman-domain-verification=d523d05a6a7da4647a55f0fd54c21512253528b59e9d910a6a40e606bbc5223168bb03531707ac638848a9772724beb1da418344a54d59cd050f99dd987d1d7e
Yahoo
Domain verification
yahoo-verification-key=nyU411m7YY+hh2ZjTI1ktt8kdVEPUGDeScw2q6Xx8w8=
elle.ns.cloudflare.com
Cloudflare
roman.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2397944745
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m