iP or domain name lookup

cn.ac101.blue Server iP：

Current resolution：

domain resolution record：

2024-03-09-----2024-05-23 64.190.63.222

2023-08-24-----2024-02-06 64.190.63.111

2022-03-13-----2022-03-13 72.14.185.43

2022-03-09-----2022-03-09 96.126.123.244

2021-11-18-----2021-12-23 99.83.154.118

2021-11-12-----2021-11-15 123.140.238.203

2021-09-30-----2021-11-07 123.140.238.186

2021-09-24-----2021-09-24 123.140.238.199

2021-09-21-----2021-09-21 123.140.238.193

2021-09-19-----2021-09-19 123.140.238.194

2020-12-05-----2021-09-13 123.140.238.191