ns0.pge.com has no CNAME records.
Question and response
Question
dig ns0.pge.com. NS
Answer
The response has no answer records.
Authority
pge.com. 880 SOA ns0.pge.com. ibadmin.pge.com. 93489 3600 300 1814400 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0