out13_2.ervers.com has no CNAME records.
Question and response
Question
dig out13_2.ervers.com. NS
Answer
The response has no answer records.
Authority
ervers.com. 10800 SOA ns11.ervers.com. admin.ervers.com. 2026022502 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0