iP or domain name lookup

wm.37sm.com Server iP：

Current resolution：

domain resolution record：

2019-07-12-----2019-09-30 47.91.203.89

2017-01-04-----2017-02-04 162.159.208.33

2017-02-04-----2017-02-04 162.159.209.33

2017-01-06-----2017-01-06 58.211.137.239

2017-01-05-----2017-01-05 122.190.3.234

2017-01-04-----2017-01-04 58.211.137.244

2017-01-04-----2017-01-04 42.236.94.252

2017-01-04-----2017-01-04 116.31.127.244

2017-01-04-----2017-01-04 117.34.14.244