52.static.apol.com.tw has no NS records.
NS records for this zone are defined at static.apol.com.tw.
NS records for this zone are defined at static.apol.com.tw.
Question and response
Question
dig 52.static.apol.com.tw. NS
Answer
The response has no answer records.
Authority
static.apol.com.tw. 86400 SOA nh468-dns-2200-005.fetnet.net. please_set_email.absolutely.nowhere. 71 15 5 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0