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

Non-authoritative answer:
cdn.topsrvimp.com	canonical name = iv07maw94ax.jupl4y6e5k.ioriveredge.net.
iv07maw94ax.jupl4y6e5k.ioriveredge.net	canonical name = dualstack.ioriver.map.fastly.net.
Name:	dualstack.ioriver.map.fastly.net
Address: 146.75.11.52
Name:	dualstack.ioriver.map.fastly.net
Address: 2a04:4e42:72::820