iP or domain name lookup

ds.ol89.cn Server iP：

Current resolution：

domain resolution record：

2019-10-01-----2019-10-11 78.142.29.210

2019-07-12-----2019-07-12 39.109.123.191

2017-11-20-----2017-11-20 183.2.247.28

2017-09-07-----2017-09-07 180.101.74.72