Apex domains cannot have CNAME records.
Apple
Domain verification
apple-domain-verification=xuBUSwh31AXH2xM2
Atlassian
Domain verification
atlassian-domain-verification=/eSDEnaniWteFqEI23UZYiZtUv65pOBlsZQolQRXYodtnAuKwK98n8hX0sv4Ax3p
Google
Domain verification
google-site-verification=xumMaG-UQNqQUP1PLsReB38wnwBdebLfxEQHQvMGX4Y
Jamf
Domain verification
jamf-site-verification=zY9Cgf8J2n15qXJ-drFPjQ
Microsoft
Domain verification
MS=ms33689626
_fq99tlwkftmj6r9vrl6wgpm97zbqrd7
factorial-domain-verification=GFM25JcsRDTpZqbLsqByRxZbzdZuxz5y6MMEqNNE2vP1UC8pr2kYoJNQtNiK8gcb
bob.ns.cloudflare.com
Cloudflare
fish.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2397421609
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m