iP or domain name lookup

yun.ac Server iP：

Current resolution：

domain resolution record：

2024-06-15-----2024-06-15 38.12.27.155

2024-05-20-----2024-05-20 156.238.224.5

2024-05-20-----2024-05-20 154.201.91.83

2024-05-20-----2024-05-20 23.224.89.178

2024-05-20-----2024-05-20 156.238.224.16

2024-05-20-----2024-05-20 35.215.142.48

2024-04-07-----2024-04-12 38.60.107.200

2024-04-12-----2024-04-12 3.34.140.81

2024-04-12-----2024-04-12 172.67.220.7

2024-04-12-----2024-04-12 104.21.51.30

2024-04-12-----2024-04-12 52.79.112.118

2024-04-12-----2024-04-12 43.203.232.71