iP or domain name lookup

yt.aiuii.cn Server iP：

Current resolution：

domain resolution record：

2022-06-20-----2022-06-25 104.21.6.162

2022-06-20-----2022-06-25 172.67.135.5

2020-04-07-----2021-01-08 104.28.5.239

2020-04-07-----2021-01-08 104.28.4.239

2020-11-27-----2021-01-08 172.67.162.47