iP or domain name lookup

bujie.org Server iP：

Current resolution：

domain resolution record：

2019-08-14-----2019-12-13 104.221.163.120

2017-07-26-----2017-12-18 121.201.9.233

2017-03-29-----2017-06-26 220.166.64.95

2017-05-27-----2017-06-09 125.65.41.93

2017-06-01-----2017-06-01 163.53.56.5

2017-03-03-----2017-05-16 218.200.14.16

2017-03-03-----2017-03-03 220.166.64.71