shell:$ nslookup -timeout=2 -retry=1 'steamuserimages-a.akamaihd.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
steamuserimages-a.akamaihd.net	canonical name = steamuserimages-a.akamaihd.net.edgesuite.net.
steamuserimages-a.akamaihd.net.edgesuite.net	canonical name = a1639.dscb.akamai.net.
Name:	a1639.dscb.akamai.net
Address: 23.212.239.210
Name:	a1639.dscb.akamai.net
Address: 23.212.239.202
Name:	a1639.dscb.akamai.net
Address: 2600:1405:d400:f::17c7:364f
Name:	a1639.dscb.akamai.net
Address: 2600:1405:d400:f::17c7:3644