iP or domain name lookup

student.emeritus.org Server iP：

Current resolution：

domain resolution record：

2024-09-07-----2024-09-07 54.209.80.201

2024-09-07-----2024-09-07 54.166.8.162

2024-03-04-----2024-03-04 52.221.37.20

2024-03-04-----2024-03-04 54.255.125.214

2024-03-04-----2024-03-04 18.141.49.75

2022-03-20-----2022-06-14 104.18.13.18

2022-03-20-----2022-06-14 104.18.12.18

2021-11-24-----2021-11-24 52.77.21.238

2021-11-24-----2021-11-24 52.77.9.197

2021-11-24-----2021-11-24 18.138.107.246

2021-11-24-----2021-11-24 52.220.101.101