iP or domain name lookup

cs186.org Server iP：

Current resolution：

domain resolution record：

2024-02-20-----2024-08-10 104.21.53.122

2024-02-20-----2024-08-10 172.67.212.210

2024-05-26-----2024-05-29 127.0.0.1

2024-05-26-----2024-05-26 188.114.96.3

2022-12-26-----2022-12-26 154.23.181.218

2020-11-10-----2020-12-22 47.52.128.78

2019-06-26-----2020-01-26 47.52.65.216

2019-11-15-----2020-01-26 47.75.14.121

2019-06-26-----2019-11-02 47.52.155.55

2019-06-26-----2019-11-02 47.52.249.163

2019-06-26-----2019-11-02 47.75.115.180