iP or domain name lookup

www.acmicpc.net Server iP：

Current resolution：

domain resolution record：

2023-11-02-----2023-11-02 18.182.179.67

2023-11-02-----2023-11-02 54.92.58.249

2023-10-22-----2023-10-22 13.230.229.91

2023-10-22-----2023-10-22 18.177.46.192

2023-10-22-----2023-10-22 3.114.53.13

2022-04-04-----2022-04-04 18.181.36.30

2022-04-04-----2022-04-04 54.64.78.238

2019-06-21-----2019-07-20 104.26.11.18

2019-06-21-----2019-07-20 104.26.10.18

2018-03-31-----2018-04-10 104.25.20.17

2018-03-31-----2018-04-10 104.25.21.17