iP or domain name lookup

graduate.ahut.edu.cn Server iP：

Current resolution：

domain resolution record：

2022-02-21-----2026-02-13 211.70.155.63

2020-12-05-----2021-10-26 211.70.155.52

2017-03-12-----2020-10-11 210.45.60.52

2017-03-12-----2020-10-11 211.70.144.51

2017-03-12-----2020-09-08 58.242.129.252

2017-09-04-----2020-09-08 58.242.129.253