shell:$ nslookup -timeout=2 -retry=1 'www.slideshare.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.slideshare.net	canonical name = scribd.map.fastly.net.
Name:	scribd.map.fastly.net
Address: 146.75.10.152