Apex domains cannot have CNAME records.
Adobe identity provider
Domain verification
adobe-idp-site-verification=6bd5e74c-a3a0-4781-b2e1-e95399b5e11c
Apple
Domain verification
apple-domain-verification=X5Jt76bn3Dnmgzjj
Atlassian
Domain verification
atlassian-domain-verification=mLabq99iaT8kquJechF6l31FAYoNUe3WB7tLpLFUiUYVJCse9SKq83hOJzFkwqrh
Atlassian
Domain verification
atlassian-domain-verification=qZD4TfnCAoAjCFQgafhoKQpOs9tviekNK4wYE4a5eK3XoRP06hXAvEp8SLU0v7fI
Cisco CI
Domain verification
cisco-ci-domain-verification=6f3bfb849796a518061f8e8c4356f687a138502d86db742791685059176547dd
Dynatrace
Domain verification
Dynatrace-site-verification=7d881a7c-c13f-4146-9d27-2731459e2509__iqls0105tagglcsaul0m16ibrf
Facebook
Domain verification
facebook-domain-verification=n6cqjfucq6plswmtfbwnbbeu1qiq3v
Google
Domain verification
google-site-verification=8M6XjQCzydT62jk8HY3VXPAG-nKDllTRV-JpA3-Ktyw
Google
Domain verification
google-site-verification=L5kkMdiFI8npvb6KlHui84fJaCw5G64DWhaDRIAT4_c
Google
Domain verification
google-site-verification=zBSq1mG5ssu2If-C17UAz_MzSZDcx03MVxmeDwMNc5w
miro-verification=2494d255c4c50b1e521650a0659cbf3fa08b0072
Webex
Domain verification
webexdomainverification.8C462=b728ec3f-dfc9-42f9-92cb-9ba8853cbee8
Yahoo
Domain verification
yahoo-verification-key=Ay+djyw0qWQgXKWGA/jstjYryTMrKb+PBXI5l8u5/jw=