iP or domain name lookup

www.r7.ac.cn Server iP：

Current resolution：

domain resolution record：

2024-09-02-----2024-09-02 156.250.88.226

2024-02-12-----2024-05-09 149.29.113.226

2022-11-02-----2023-07-22 38.238.198.4

2020-02-27-----2020-04-11 112.3.29.254

2019-10-30-----2019-10-30 45.126.123.107