iP or domain name lookup

cssem.cn Server iP：

Current resolution：

domain resolution record：

2019-06-12-----2019-10-10 47.91.215.226

2019-01-14-----2019-01-14 47.106.34.14

2017-06-20-----2017-12-21 221.236.7.196

2017-12-21-----2017-12-21 221.236.7.209

2017-12-21-----2017-12-21 118.212.233.170

2017-12-21-----2017-12-21 117.23.61.186

2017-12-21-----2017-12-21 221.236.7.191

2017-12-21-----2017-12-21 121.42.41.227

2017-12-21-----2017-12-21 221.236.7.214

2017-12-21-----2017-12-21 221.236.7.245

2017-06-20-----2017-06-21 1.82.243.186

2017-06-20-----2017-06-20 210.209.70.10

2017-06-20-----2017-06-20 180.97.158.120

2017-06-20-----2017-06-20 221.236.7.143

2017-06-20-----2017-06-20 113.207.76.114