Apex domains cannot have CNAME records.
Atlassian
Domain verification
atlassian-sending-domain-verification=43678069-1ad2-466c-86bf-0a85997ac87b
Facebook
Domain verification
facebook-domain-verification=35l6nddw6mb1exr6vhnvx5rpq1to74
Google
Domain verification
google-site-verification=LF9J63ViaudzfciBDwycqZ5X7bjSoSkBih0xMLS82io
Microsoft
Domain verification
MS=ms51578296
9c5j34mo1c319h12hi43n11sv7
a04gkt7od66qh4ac1s1laslohu
Ndk+aLRnBw68t7SIt0yorG/TGrgqXhp1DhNdc68YceI=
nkjf6jj0a9n8ikuoduegqm8t5q
rJboFbg18OwSw7sp2rqprBF6G1THuS62q/K9gX0B4Xo=
sdugqs9n2t4kih8qjfivts56j4
Zone apex
Start of authority
Email
Serial
1760600697
Refresh
4h 33m 4s
Retry
34m 8s
Expire
12d 3h 16m 16s
Negative cache TTL
42m 40s