iP or domain name lookup

yw.9199y.cn Server iP：

Current resolution：

domain resolution record：

2020-12-15-----2020-12-15 52.128.23.153

2019-07-16-----2019-12-06 154.206.42.154

2017-02-24-----2017-02-24 104.31.129.74

2017-02-24-----2017-02-24 117.34.14.199

2017-02-24-----2017-02-24 116.31.127.199

2017-02-24-----2017-02-24 58.211.137.199

2017-02-24-----2017-02-24 125.39.174.199

2017-02-24-----2017-02-24 42.236.94.241