iP or domain name lookup

2015.xx.com Server iP：

Current resolution：

domain resolution record：

2023-04-27-----2023-04-27 199.59.243.223

2023-02-27-----2023-03-06 199.59.243.222

2022-06-24-----2022-06-24 199.59.243.220

2021-10-03-----2022-05-04 199.59.243.200

2021-03-23-----2021-10-25 199.59.242.153

2020-05-03-----2020-07-31 185.53.178.54

2020-06-25-----2020-07-31 104.247.82.54

2020-01-02-----2020-01-02 185.53.178.9

2020-01-02-----2020-01-02 54.72.9.51