iP or domain name lookup

english.pku.edu.cn Server iP：

Current resolution：

domain resolution record：

2022-08-22-----2023-09-01 111.205.231.106

2022-08-22-----2023-09-01 162.105.120.171

2022-08-22-----2023-09-01 106.120.125.39

2022-03-16-----2022-03-16 111.205.231.109

2022-03-16-----2022-03-16 162.105.120.172

2022-03-16-----2022-03-16 106.120.125.40

2018-07-02-----2021-09-29 106.120.125.21

2018-07-02-----2021-09-29 111.205.231.83

2021-08-24-----2021-09-29 162.105.120.151

2018-07-02-----2020-06-18 162.105.131.208

2019-01-10-----2020-06-18 124.205.79.251

2018-07-02-----2018-07-08 124.205.70.207

2017-09-05-----2018-01-21 162.105.131.198