Apex domains cannot have CNAME records.
Apple
Domain verification
apple-domain-verification=B4n5NPkDtSEiA5Yc
Canva
Domain verification
canva-site-verification=VOBY4CAY6ik36NChA8aNEQ
Cisco CI
Domain verification
cisco-ci-domain-verification=57e3d0a4d160f89f557fe5d399b69dc54ec6be2d87e3f3f92dea807aa2352280
Google
Domain verification
google-site-verification=S-dCI9DFsYGOHYiDLZ3bHFnwnXMb9hw3gLFm5okw5XI
Microsoft
Domain verification
MS=ms64519113
Microsoft
Domain verification
MS=ms66260373
Miro
Domain verification
miro-verification=9a18503a11acd467a6176c2fe5eb1c8b61d34966
SwissSign
Domain verification
swisssign-check=I8WqDDTy8dfADZoFf6qgHT58UyU
8fws4s81122dfsxlcpvxkdrxysk6fzhy
ns-cloud-a1.googledomains.com
Google Cloud
ns-cloud-a2.googledomains.com
Google Cloud
ns-cloud-a3.googledomains.com
Google Cloud
ns-cloud-a4.googledomains.com
Google Cloud
Zone apex
Start of authority
Email
Serial
1
Refresh
6h
Retry
1h
Expire
3d
Negative cache TTL
5m