iP or domain name lookup

ag.83cagayan.com Server iP：

Current resolution：

domain resolution record：

2017-05-08-----2017-05-11 23.234.1.238

2017-05-08-----2017-05-11 23.234.1.163

2017-05-08-----2017-05-11 23.234.1.188

2017-05-08-----2017-05-11 43.230.115.204

2017-05-08-----2017-05-11 23.234.2.73

2017-05-08-----2017-05-08 43.230.115.119