shell:$ nslookup -timeout=2 -retry=1 'b1sync.zemanta.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
b1sync.zemanta.com	canonical name = b1-use1.zemanta.com.
b1-use1.zemanta.com	canonical name = zemanta-nychi2.outbrain.org.
zemanta-nychi2.outbrain.org	canonical name = nydc1.outbrain.org.
Name:	nydc1.outbrain.org
Address: 64.202.112.127