iP or domain name lookup

cs15.ok555.net Server iP：

Current resolution：

domain resolution record：

2020-06-03-----2022-03-09 103.51.144.90

2020-06-03-----2022-03-09 103.231.13.42

2016-12-16-----2017-05-01 222.140.196.6

2017-01-20-----2017-01-20 42.232.9.28

2017-01-07-----2017-01-08 115.56.85.105

2016-12-18-----2016-12-18 222.140.194.230

2016-12-16-----2016-12-16 182.120.64.17