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

Non-authoritative answer:
math.microsoft.com	canonical name = solver-app-cdn-prod-f8hrbbeka2g7dph9.b02.azurefd.net.
solver-app-cdn-prod-f8hrbbeka2g7dph9.b02.azurefd.net	canonical name = mr-b02.tm-azurefd.net.
mr-b02.tm-azurefd.net	canonical name = shed.dual-low.part-0023.t-0009.t-msedge.net.
shed.dual-low.part-0023.t-0009.t-msedge.net	canonical name = part-0023.t-0009.t-msedge.net.
Name:	part-0023.t-0009.t-msedge.net
Address: 13.107.213.51
Name:	part-0023.t-0009.t-msedge.net
Address: 13.107.246.51
Name:	part-0023.t-0009.t-msedge.net
Address: 2620:1ec:bdf::51
Name:	part-0023.t-0009.t-msedge.net
Address: 2620:1ec:46::51