shell:$ nslookup -timeout=2 -retry=1 'op-krgroup1-swiftservehd-1.dens.tv'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
op-krgroup1-swiftservehd-1.dens.tv	canonical name = edge.dens-op.swiftserve.com.
edge.dens-op.swiftserve.com	canonical name = denstv.cbn.r53.swiftserve.com.
denstv.cbn.r53.swiftserve.com	canonical name = denstv.cbn.jns.swiftserve.com.
denstv.cbn.jns.swiftserve.com	canonical name = denstv.cbn.fllbk.r53.swiftserve.com.
denstv.cbn.fllbk.r53.swiftserve.com	canonical name = da01.id06.swiftserve.com.
Name:	da01.id06.swiftserve.com
Address: 210.210.155.36