iP or domain name lookup

a.vlion.cn Server iP：

Current resolution：

domain resolution record：

2021-01-11-----2021-03-06 121.40.175.7

2021-01-11-----2021-03-06 47.98.123.208

2021-01-11-----2021-03-06 47.97.97.162

2019-12-05-----2019-12-05 47.98.196.97

2019-12-05-----2019-12-05 47.99.191.21

2019-12-05-----2019-12-05 120.55.55.216

2019-12-05-----2019-12-05 47.97.127.4

2019-12-05-----2019-12-05 47.99.115.255