iP or domain name lookup

covear.win Server iP：

Current resolution：

domain resolution record：

2018-01-31-----2018-02-01 216.144.230.71

2017-10-02-----2017-10-02 120.78.131.131

2017-10-01-----2017-10-01 60.205.39.198

2017-02-25-----2017-02-26 70.91.173.91