Apex domains cannot have CNAME records.
Apple
Domain verification
apple-domain-verification=qXWzXRpgrSprzn01
Cisco CI
Domain verification
cisco-ci-domain-verification=6380ee7482fa3a76ee1008fc214a31a524aca8c2ba6efae243e780fb5b5b9e4b
Facebook
Domain verification
facebook-domain-verification=erf5l6m4kqfxf12tfvh5y03ud6afjf
Google
Domain verification
google-site-verification=q5f2fdv1V1bj1UoilCsnSoNPgpuEld3PxKeDb_LHf5I
Microsoft
Domain verification
MS=ms73554832
access-domain-verification=b81e7ec9b66839c5b1665a3a053f6ffa912dee09262c90ef5fc3980628acd044
bw=u1nH9w1e/v+oKVLSBlSOeFlcvxEBc1A4XAALfU17RuV3
O29JF85SB7
Zone apex
Start of authority
Email
Serial
2026022700
Refresh
3h
Retry
1h
Expire
14d
Negative cache TTL
3h