dns2uio.cyberweb.net.ec has no CNAME records.
Question and response
Question
dig dns2uio.cyberweb.net.ec. NS
Answer
The response has no answer records.
Authority
cyberweb.net.ec. 10205 SOA cyberweb.net.ec. hostmaster.dns1gye.cyberweb.net.ec. 2013091802 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0