mhnet.com.br has no AAAA records.
Apex domains cannot have CNAME records.
Brevo
Domain verification
brevo-code:9285841a17d5a9fb7f0520d4bb9bfbd6
Facebook
Domain verification
facebook-domain-verification=kpc9rwoolxfjfbdqdok9agd1sxrw04
Google
Domain verification
google-site-verification=puNZ9Hn1bsA8LbZejLQQ6BuwSvkFKWygRLokYs1WGq8
Microsoft
Domain verification
MS=4D88174E9A4B2709FD962675D4A7D4F1E76646CB
Sendinblue
Domain verification
sendinblue-site-verification=8270917
Valor: v=spf1 include:spf.antispamcloud.com +a +mx -all
amos.ns.cloudflare.com
Cloudflare
gloria.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2396231877
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m