iP or domain name lookup

sy.58.com Server iP：

Current resolution：

domain resolution record：

2020-11-15-----2020-11-15 203.205.159.21

2020-11-15-----2020-11-15 115.159.231.124

2019-05-27-----2020-04-16 123.206.235.102

2019-10-10-----2020-04-16 150.109.91.25

2017-03-30-----2019-05-19 115.159.231.141

2017-03-30-----2017-12-29 115.159.231.179

2017-08-26-----2017-08-26 211.151.3.143

2017-08-26-----2017-08-26 211.151.3.144