ns1.cipherviber.com has no NS records.
NS records for this zone are defined at cipherviber.com.
NS records for this zone are defined at cipherviber.com.
Question and response
Question
dig ns1.cipherviber.com. NS
Answer
The response has no answer records.
Authority
cipherviber.com. 3600 SOA ns1.cipherviber.com. contact.cipherviber.com. 2013040900 10800 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0