sendgrid.net has no AAAA records.
Apex domains cannot have CNAME records.
Google
Domain verification
google-site-verification=1UEf8ey-RibUjY6gnpqIZFjWNqMknmeyeHz1zTmj0DE
Mail.ru
Domain verification
mailru-verification: 2e3995fa8a7d00e0
Yahoo
Domain verification
yahoo-verification-key=TrufSXS+dfythA5AIMbLUnkX38rjr1HR93gbqHUSY74=
5m3r13nvilmq8tgf5foh6ki1uv
cemmvnbghpsb500d7c19e35fgm
i52uk89q4nfe1mpgqv5qsmsj3j.
p8bnb2lp424dkl3c4io1aemiei
utjqqjvmeadmlva41ectre9gd3
ns10.dnsmadeeasy.com
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ns11.dnsmadeeasy.com
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ns12.dnsmadeeasy.com
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ns13.dnsmadeeasy.com
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ns14.dnsmadeeasy.com
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ns15.dnsmadeeasy.com
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Zone apex
Start of authority
Email
Serial
2011293935
Refresh
4h
Retry
10m
Expire
20d
Negative cache TTL
3m