iP or domain name lookup

cnexp.net Server iP：

Current resolution：

domain resolution record：

2019-08-14-----2023-04-02 47.91.139.215

2017-11-15-----2017-11-18 47.91.233.196

2017-11-15-----2017-11-18 47.52.59.201

2017-04-10-----2017-11-15 47.90.105.71

2017-07-26-----2017-09-24 192.161.60.100

2017-07-26-----2017-07-28 198.55.120.52

2017-04-20-----2017-06-15 103.235.101.136

2017-04-10-----2017-05-16 43.228.205.190

2016-12-27-----2017-02-13 23.225.251.90

2016-12-01-----2016-12-22 23.225.251.144

2016-11-25-----2016-12-01 23.224.101.69

2016-11-24-----2016-11-25 23.224.101.132