Apex domains cannot have CNAME records.
Atlassian
Domain verification
atlassian-domain-verification=J1dedjca8BaocfRpY0feoq1f0pv70On5pAS8/m/5JhkVYUbRRnNNmeTChd6i5Lw4
Google
Domain verification
google-site-verification=O-bZ-UY0SKlmxGJV9ihm6Osk41nI_j44bJzgPfXop0g
KnowBe4
Domain verification
knowbe4-site-verification=324007f412e22c74815b531cc35bf5c8
Microsoft
Domain verification
MS=ms37036145
Sendinblue
Domain verification
Sendinblue-code:ac691e6a12436d0a190b3ed44872fcd4
Wiz
Domain verification
wiz-domain-verification=f5adf525e70f02deeaf7d34032fdb648f7edc48ebc4229e3af5c360d4471acc5
Zoom
Domain verification
ZOOM_verify_glusdvVRKZjoQyiE2gs15g
4hd79h5pcnw8pcgpw5phc69tlmw35zx3
austin.ns.cloudflare.com
Cloudflare
jean.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2398597061
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m