shell:$ nslookup -timeout=2 -retry=1 'checkout.microsoft365.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
checkout.microsoft365.com	canonical name = localization.checkout.office.net.edgekey.net.
localization.checkout.office.net.edgekey.net	canonical name = e10993.dsca.akamaiedge.net.
Name:	e10993.dsca.akamaiedge.net
Address: 23.12.7.172
Name:	e10993.dsca.akamaiedge.net
Address: 2600:1405:d400:185::2af1
Name:	e10993.dsca.akamaiedge.net
Address: 2600:1405:d400:182::2af1