Question and response
Question
dig email.tangocard.com. NS
Answer
email.tangocard.com. 5 CNAME d1vkrexmt9sd4l.cloudfront.net.
d1vkrexmt9sd4l.cloudfront.net. 5 NS ns-1207.awsdns-22.org.
d1vkrexmt9sd4l.cloudfront.net. 5 NS ns-637.awsdns-15.net.
d1vkrexmt9sd4l.cloudfront.net. 5 NS ns-100.awsdns-12.com.
d1vkrexmt9sd4l.cloudfront.net. 5 NS ns-1899.awsdns-45.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0