Apex domains cannot have CNAME records.
Atlassian
Domain verification
atlassian-domain-verification=fRAxzap8qVcsbE9XHOobBbJ4rjal28Lf9v024ucJQeqX87rWfZgLjV3vjJh4OGMx
Cisco CI
Domain verification
cisco-ci-domain-verification=68ffc8012406ecf748d3d63405ba1e4b79773063307c1757ad37cafbf2d74eca
Facebook
Domain verification
facebook-domain-verification=rcgbvq1ghot0qwvgso0uhfe9ttv0bn
Google
Domain verification
google-site-verification=HF-22s2eKEhpntyzd26TRsLOSNm5sEQHrd9duOFRjJM
Microsoft
Domain verification
MS=ms41641131
Pardot
Domain verification
pardot1031201=85d075a6bf68d97cca90241e710b3f9d25801cfb7debc3f691501f983c7bfa35
Proofpoint
Domain verification
ppe-beda283feac39b7100208a6e75f3c99a7bacf027
Zoom
Domain verification
ZOOM_verify_TiSqhxgY8KLjOqt4GuVEyF
sending_domain1031201=06796f2b8295d206fce506bece40ffa7ea11711d0e273d8f7a0e77aaef740a29
Zone apex
Start of authority
Email
Serial
2026022001
Refresh
1h
Retry
5m
Expire
14d
Negative cache TTL
1h