iP or domain name lookup

mdsa.51cto.com Server iP：

Current resolution：

domain resolution record：

2019-08-18-----2019-10-26 117.78.24.35

2019-08-18-----2019-10-26 117.78.24.40

2019-08-18-----2019-10-26 117.78.24.42

2017-09-12-----2018-03-21 59.110.244.199

2016-11-09-----2017-09-12 120.55.238.29

2016-11-09-----2017-09-11 116.211.167.193

2016-11-09-----2017-04-24 218.11.0.91