shell:$ nslookup -timeout=2 -retry=1 'forms.office.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
forms.office.com	canonical name = forms.office.com.b-0039.b-msedge.net.
forms.office.com.b-0039.b-msedge.net	canonical name = b-0039.b-msedge.net.
Name:	b-0039.b-msedge.net
Address: 13.107.6.194
Name:	b-0039.b-msedge.net
Address: 2620:1ec:a92::194