iP or domain name lookup

mail.hebut.edu.cn Server iP：

Current resolution：

domain resolution record：

2023-08-08-----2024-08-12 45.195.17.253

2024-05-23-----2024-08-12 220.197.30.153

2024-05-23-----2024-08-12 111.124.200.57

2024-05-23-----2024-08-12 117.135.207.57

2023-07-25-----2024-05-23 45.195.17.252

2022-10-08-----2023-08-08 115.236.119.68

2022-02-22-----2022-03-19 223.252.202.7

2022-03-19-----2022-03-19 103.129.255.247

2021-11-15-----2022-02-22 103.129.255.200

2019-12-26-----2021-11-15 123.58.177.120

2019-07-03-----2019-07-15 123.58.177.239