iP or domain name lookup

esmtong.cn Server iP：

Current resolution：

domain resolution record：

2017-05-11-----2017-05-11 104.31.166.4

2017-05-11-----2017-05-11 115.231.187.157

2017-05-11-----2017-05-11 58.211.137.157

2017-05-11-----2017-05-11 101.71.56.157

2017-05-11-----2017-05-11 122.190.3.157

2017-05-11-----2017-05-11 116.31.127.157

2017-05-11-----2017-05-11 117.34.14.157

2017-01-20-----2017-01-21 122.190.3.196

2017-01-20-----2017-01-20 162.159.208.27

2017-01-20-----2017-01-20 117.34.14.196

2017-01-20-----2017-01-20 125.39.174.196

2017-01-20-----2017-01-20 42.236.94.240