iP or domain name lookup

ct.xx00.pub Server iP：

Current resolution：

domain resolution record：

2021-06-16-----2021-06-16 223.241.94.35

2019-03-18-----2019-07-11 223.241.94.204

2017-12-01-----2017-12-02 60.169.163.107

2017-04-12-----2017-04-12 60.169.161.166

2017-02-22-----2017-02-26 60.169.163.144

2017-02-23-----2017-02-26 60.169.160.76