lsusp.com has no AAAA records.
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Box
Domain verification
box-domain-verification=8d0cc0147b6c8fc13de8570b86066974b6a5d353f140a80a9e7e308aee2af927
KnowBe4
Domain verification
knowbe4-site-verification=b14c073833f82cd74c1ef7cef7b4cbbc
Microsoft
Domain verification
MS=ms79441075
Zone apex
Start of authority
Email
Serial
789631301
Refresh
1h
Retry
10m
Expire
30d
Negative cache TTL
1h