iP or domain name lookup

ss.top-yun.pw Server iP：

Current resolution：

domain resolution record：

2020-12-04-----2020-12-11 52.128.23.153

2020-11-18-----2020-11-24 69.172.201.208

2017-11-20-----2017-11-20 198.44.242.62

2017-10-30-----2017-11-13 112.175.238.99

2017-10-30-----2017-11-12 38.134.121.16

2017-10-30-----2017-11-12 122.9.179.134

2017-09-14-----2017-10-02 38.134.121.44

2017-09-14-----2017-10-02 38.134.121.22

2017-07-12-----2017-08-20 38.134.121.36

2017-07-12-----2017-08-19 38.134.121.26