iP or domain name lookup

user.nova.net.cn Server iP：

Current resolution：

domain resolution record：

2016-01-09-----2016-10-17 221.192.153.41

2016-01-09-----2016-10-17 221.204.244.36

2016-10-17-----2016-10-17 111.175.221.58

2016-01-09-----2016-06-06 113.12.83.4

2016-06-06-----2016-06-06 123.129.254.17

2016-01-09-----2016-06-04 123.129.254.19

2016-01-09-----2016-06-04 218.30.64.194

2016-04-25-----2016-04-25 202.102.110.203

2016-01-09-----2016-01-09 120.192.83.162