Apex domains cannot have CNAME records.
Facebook
Domain verification
facebook-domain-verification=fdr4qoga3n5geh5df2g7lytou3ouh7
GlobalSign
Domain verification
_globalsign-domain-verification=ciFrwuoPyDfUtRdKA6Us4Q2bSDuhTm8cxcbje0V-jo
Google
Domain verification
google-site-verification=scCysma4kMGXr_YA3SpMblOTv-jg6DV2xMP6RMvaTBc
Google
Domain verification
google-site-verification=SkdIcGVWinYXoZxHWaKYTzdupDON4Lm8koNQskf2C6w
Google
Domain verification
google-site-verification=SoZGMWjesRU_UXjGIncJZcfnALj90tLkBEG3nFYp0tc
haley.ns.cloudflare.com
Cloudflare
keenan.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2397072282
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m