iP or domain name lookup

portal.pku.edu.cn Server iP：

Current resolution：

domain resolution record：

2021-10-21-----2024-09-19 162.105.120.171

2021-10-21-----2024-09-19 106.120.125.39

2021-10-21-----2024-09-19 111.205.231.106

2023-10-03-----2023-10-03 182.43.124.6

2019-09-04-----2021-09-12 162.105.131.197

2020-04-17-----2021-09-12 111.205.231.90

2020-04-17-----2021-09-12 106.120.125.28

2020-04-17-----2021-02-07 124.205.79.250

2019-07-26-----2019-10-24 124.205.78.190

2019-07-26-----2019-09-04 111.205.231.87

2019-07-26-----2019-09-04 106.120.125.25

2019-07-26-----2019-08-14 162.105.129.251