go
www.104.com.tw has two IP numbers. They are on the same IP network. 104.com.tw is a domain controlled by two nameservers at 104.com.tw themselves. They are on the same IP network. Incoming mail for 104.com.tw is handled by one mailserver also at 104.com.tw. www.104.com.tw is hosted on two servers in Taiwan.

www.104.com.tw
a records
 
+ 202.8.15.101 202.8.14.0/23 AS18410 -
+ --- -
+ 202.8.15.102 202.8.14.0/23 AS18410 -

104.com.tw
ns-soa records
dns.104.com.tw
+ 202.8.15.5 202.8.14.0/23 AS18410 -
+ --- -
ns records
dns.104.com.tw
+ 202.8.15.5 202.8.14.0/23 AS18410 -
+ --- -
dns1.104.com.tw
+ 202.8.15.6 202.8.14.0/23 AS18410 -
mx records
is.104.com.tw
+ 202.8.15.43 202.8.14.0/23 AS18410 -
+ --- -
ip numbers of host
202.8.15.101
202.8.15.102
ptrs of ip numbers
www.104.com.tw
ip numbers using ptr to this host
202.8.15.101
202.8.15.102
202.8.15.231