ec2-3-213-234-201.compute-1.amazonaws.com.
Question and response
Question
dig rev.amber.infeedo.com. PTR
Answer
rev.amber.infeedo.com. 1 PTR ec2-3-213-234-201.compute-1.amazonaws.com.
Authority
infeedo.com. 172800 NS ns-1297.awsdns-34.org.
infeedo.com. 172800 NS ns-1802.awsdns-33.co.uk.
infeedo.com. 172800 NS ns-272.awsdns-34.com.
infeedo.com. 172800 NS ns-786.awsdns-34.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0