shell:$ nslookup -timeout=2 -retry=1 'www.o2.co.uk'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.o2.co.uk	canonical name = feproxy-www.azurefd.net.
feproxy-www.azurefd.net	canonical name = mr-azurefd.tm-azurefd.net.
mr-azurefd.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: 13.107.246.51
Name:	part-0023.t-0009.t-msedge.net
Address: 13.107.213.51
Name:	part-0023.t-0009.t-msedge.net
Address: 2620:1ec:46::51
Name:	part-0023.t-0009.t-msedge.net
Address: 2620:1ec:bdf::51