Apex domains cannot have CNAME records.
Atlassian
Domain verification
atlassian-domain-verification=D9l/s4mg3TH9vLiaBGUaeUlAP94p/giwPf4TCYKP7IBrGNTc35lC/Y21qyBzWq/j
Cisco CI
Domain verification
cisco-ci-domain-verification=1d14d801247de4116af0a07eebda5adbce80221e07d606dc37819910a079593d
Cisco CI
Domain verification
cisco-ci-domain-verification=49759994482531572f16e1abe44eafd20c1edf1452780431303d80bdce386b70
Cisco CI
Domain verification
cisco-ci-domain-verification=663fdc78e8a95b541bcb11dae970972e9d8decabc719b30bfe8f6ec2f5564211
Digicert QuoVadis
Domain verification
QuoVadis=bedad2ce-d531-451d-afa2-5ddef176c488
Google
Domain verification
google-site-verification=MtbddJDGKHgRveBTmAcjp9401f6uCckPfwuqxGTaYbU
Microsoft
Domain verification
MS=ms21870763
Microsoft
Domain verification
MS=ms82414752
Qk9VeLAwfK8lhwERhcgST7G18j0OYDAmlzPihAOFI7wC6JE9levOz5h+yBacY0DCPpHjhsXOQNTW9fHLXSfN6A==
Zone apex
Start of authority
Email
Serial
1773910681
Refresh
4h
Retry
2h
Expire
7d
Negative cache TTL
1d