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

Non-authoritative answer:
r.bing.com	canonical name = p-static.bing.trafficmanager.net.
p-static.bing.trafficmanager.net	canonical name = r.bing.com.edgekey.net.
r.bing.com.edgekey.net	canonical name = e86303.dscx.akamaiedge.net.
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.138
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.140
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.145
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.144
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.137
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.142
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.134
Name:	e86303.dscx.akamaiedge.net
Address: 23.62.106.146
Name:	e86303.dscx.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a8d
Name:	e86303.dscx.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a92
Name:	e86303.dscx.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a8e
Name:	e86303.dscx.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a8c
Name:	e86303.dscx.akamaiedge.net
Address: 2600:1405:d400:8::173e:6a91