Apex domains cannot have CNAME records.
Google
Domain verification
google-site-verification=qqplIKanNLfJm8XXK2bR9d-3G4_tgjaYM6zpwcj5XMQ
Google
Domain verification
google-site-verification=xlkGgWdJpMGyNb-Pd0inUilfwzyatSjjfDrIaa9A8oM
LogMeIn
Domain verification
logmein-verification-code=7a7d814d-bf6b-4640-81ef-4549c91dd94b
Slack
Domain verification
slack-domain-verification=hpjumExJdRXAy1WIprI1O6WK7w2QeNleiorgmg8E
Yahoo
Domain verification
yahoo-verification-key=0eb9KONDLeW5PohxjWETUw/w/VyhIJHDOYrxFet5AEU=
Zoho
Domain verification
zoho-verification=zb1552501600058.zmverify.zoho.com
doppler-site-verification=50016
doppler-site-verification=50512
margot.ns.cloudflare.com
Cloudflare
peter.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2396999545
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m