Apex, subdomain, or URL. We figure it out.

DNS history
TypeNameValueTTL
Aberkshirehathaway.com
1h
MXberkshirehathaway.com
5 berkshirehathaway-com.mail.protection.outlook.com.
1h
NSberkshirehathaway.com
ns9.worldnic.com.
2h
NSberkshirehathaway.com
ns10.worldnic.com.
2h
SOAberkshirehathaway.com
NS9.WORLDNIC.com. namehost.WORLDNIC.com. 122021809 10800 3600 604800 3600
2h
TXTberkshirehathaway.com
"MS=ms23357683"
1h
TXTberkshirehathaway.com
"v=spf1 include:spf.protection.outlook.com -all"
1h