iP or domain name lookup

sts.cuirs.cn Server iP：

Current resolution：

domain resolution record：

2021-03-19-----2021-03-19 119.28.72.80

2021-03-14-----2021-03-14 123.129.219.101

2021-03-04-----2021-03-04 180.96.32.89

2021-03-04-----2021-03-04 117.41.243.17

2021-03-04-----2021-03-04 223.111.97.143

2021-03-04-----2021-03-04 117.68.66.28

2021-03-04-----2021-03-04 27.221.54.169

2021-03-04-----2021-03-04 223.111.97.144

2021-03-04-----2021-03-04 182.254.59.207

2021-03-04-----2021-03-04 27.221.30.148

2021-03-04-----2021-03-04 42.81.125.27

2021-03-04-----2021-03-04 54.205.203.210

2021-03-04-----2021-03-04 223.111.186.40

2021-03-04-----2021-03-04 60.174.59.174