shell:$ nslookup -timeout=2 -retry=1 'b9249545.iavs5x.u.avast.com'
Server:		127.0.0.53
Address:	127.0.0.53#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: 23.57.90.71
Name:	a180.dscd.akamai.net
Address: 23.57.90.70
Name:	a180.dscd.akamai.net
Address: 2600:140a:5000:1b::210:aadb
Name:	a180.dscd.akamai.net
Address: 2600:140a:5000:1b::210:aad7