Apex domains cannot have CNAME records.
Amazon SES
Domain verification
amazonses:viZNVv2n0r5i8JVZ1d+m5WZSn7fyUByru/gyruErhTQ=
Microsoft
Domain verification
MS=ms90748745
Sophos
Domain verification
sophos-domain-verification= feb399bf13605de99a3b1a8c14897dd6f91a510eee450323b137594a48a875fb
p54gqfhb8p1cqpt1x2481nbdzjnlkhrj
sflmsq920q16r6d9kph268fb4xh9sw44
brit.ns.cloudflare.com
Cloudflare
guy.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2398274927
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m