iP or domain name lookup

dragon.yundao188.com Server iP：

Current resolution：

domain resolution record：

2017-03-01-----2017-03-01 54.192.75.37

2017-03-01-----2017-03-01 54.192.75.249

2017-03-01-----2017-03-01 54.192.75.16

2017-03-01-----2017-03-01 54.192.75.122

2017-03-01-----2017-03-01 54.230.149.214

2017-03-01-----2017-03-01 54.192.75.209

2017-03-01-----2017-03-01 54.192.75.232

2017-03-01-----2017-03-01 52.85.151.240

2017-03-01-----2017-03-01 54.230.149.209

2017-03-01-----2017-03-01 54.230.149.244