ns2.strends.com.mx has no NS records.
NS records for this zone are defined at strends.com.mx.
NS records for this zone are defined at strends.com.mx.
Question and response
Question
dig ns2.strends.com.mx. NS
Answer
The response has no answer records.
Authority
strends.com.mx. 86400 SOA ns1.strends.com.mx. hostmaster.strends.com.mx. 2012080100 10800 3600 604800 86400
Additional
. 0 OPT ; payload 2800, xrcode 0, version 0, flags 0