Question and response
Question
dig ws4.algodata.com. NS
Answer
ws4.algodata.com. 5 CNAME ws6.algodata.com.
Authority
algodata.com. 490 SOA ns-1848.awsdns-39.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0