shell:$ nslookup -timeout=2 -retry=1 'b9249545.iavs5x.u.avast.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
b9249545.iavs5x.u.avast.com	canonical name = iavs5x.u.avcdn.net.edgesuite.net.
iavs5x.u.avcdn.net.edgesuite.net	canonical name = a180.dscd.akamai.net.
Name:	a180.dscd.akamai.net
Address: 23.199.54.59
Name:	a180.dscd.akamai.net
Address: 23.199.54.47
Name:	a180.dscd.akamai.net
Address: 2600:1407:e800:23::b819:7bcd
Name:	a180.dscd.akamai.net
Address: 2600:1407:e800:23::b819:7bd1