Apex domains cannot have CNAME records.
Apple
Domain verification
apple-domain-verification=GI1YH0cJc23dNNfD
Atlassian
Domain verification
atlassian-domain-verification=ahPiRl6+BMgYdC9FF/6Wa2qrRK9z3aZ8aaAe9JSgOrdMzrS8QJdjRuQCKjIBBqSY
GlobalSign
Domain verification
_globalsign-domain-verification=AeIHniihW2glMMRJJK72A9ShmK5jV5bBiM8eUoxQI9
GlobalSign
Domain verification
_globalsign-domain-verification=IbvV1SQwO2xiaE7ehhzzomSrFgFY-chwmXea_1FCxr
GlobalSign
Domain verification
_globalsign-domain-verification=qKwohS5b5FftYR-_hqwV9vWqG16awgrDXOCoAoJ9xQ
Google
Domain verification
google-site-verification=OUk334oXeSdflb3RNKOHSZVtVN2jZ6-YrDoV0yXj38Y
Mailgun
Domain verification
mgverify=4cb667f7628bcc5da7287b010d232f10aa94b92d3bb1728bbde981137736b507
MongoDB
Domain verification
mongodb-site-verification=LEGotjVvcyog9Pl409yUv1gbx8ikwXph
Slack
Domain verification
slack-domain-verification=tHwto8FE70AM5wqkk5P39qFts7AueqxEf6Q24npy
TeamViewer
Domain verification
teamviewer-sso-verification=e83776b81b864fc784a0bff70dbc38d1
VMware CloudHealth
Domain verification
cloudhealth=792c9ac0-9434-4b31-8525-977b4cf97037
_inba8u9h96zobfgv4y1sp6k1u0uz513
bw=ZdZgjUohb/xrEHx8e/VndeOZwMkaI4wMvSlmm+GGAhPd
include:146186291.spf07.hubspotemail.net
z6mj79c02xmw0pyvn0ydb6pfyy5t716q
Zone apex
Start of authority
Email
Serial
2021051800
Refresh
2d
Retry
1h
Expire
20d
Negative cache TTL
2d