iP or domain name lookup

ys.51-wifi.cn Server iP：

Current resolution：

domain resolution record：

2022-08-02-----2022-08-02 223.109.81.159

2022-08-02-----2022-08-02 223.109.81.162

2022-08-02-----2022-08-02 153.3.236.79

2022-08-02-----2022-08-02 180.101.50.139

2022-08-02-----2022-08-02 112.80.255.152

2022-08-02-----2022-08-02 220.181.33.176

2022-08-02-----2022-08-02 180.101.50.137

2021-02-22-----2021-02-22 219.234.31.186

2020-04-16-----2020-04-16 43.224.154.186

2020-02-24-----2020-03-24 47.52.219.101

2019-11-16-----2020-02-24 43.224.153.148