shell:$ nslookup -timeout=2 -retry=1 'www.download.windowsupdate.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.download.windowsupdate.com	canonical name = www.download.windowsupdate.com.delivery.microsoft.com.
www.download.windowsupdate.com.delivery.microsoft.com	canonical name = wu-f-net.trafficmanager.net.
wu-f-net.trafficmanager.net	canonical name = fg.microsoft.map.fastly.net.
Name:	fg.microsoft.map.fastly.net
Address: 199.232.210.172
Name:	fg.microsoft.map.fastly.net
Address: 199.232.214.172
Name:	fg.microsoft.map.fastly.net
Address: 2a04:4e42:4e::684
Name:	fg.microsoft.map.fastly.net
Address: 2a04:4e42:4f::684