iP or domain name lookup

xb.sust.edu.cn Server iP：

Current resolution：

domain resolution record：

2019-12-13-----2023-01-31 52.83.164.116

2023-01-31-----2023-01-31 52.82.100.65

2020-04-24-----2021-07-07 52.83.183.158

2021-07-07-----2021-07-07 52.83.157.0

2019-07-15-----2019-12-22 52.82.111.116

2017-09-12-----2019-12-15 222.24.93.102

2019-07-15-----2019-07-15 52.83.184.162

2018-10-24-----2018-10-24 221.179.46.190

2018-10-24-----2018-10-24 52.80.187.28

2018-01-21-----2018-01-21 52.80.73.186

2017-09-12-----2017-09-12 113.200.78.116

2017-09-12-----2017-09-12 124.114.203.166