52.static.apol.com.tw has no CNAME records.
Question and response
Question
dig 52.static.apol.com.tw. NS
Answer
The response has no answer records.
Authority
static.apol.com.tw. 5280 SOA nh468-dns-2200-005.fetnet.net. please_set_email.absolutely.nowhere. 71 15 5 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0