iP or domain name lookup

mxbiz.sina.net Server iP：

Current resolution：

domain resolution record：

2022-05-15-----2025-08-15 36.51.254.76

2024-12-09-----2025-08-15 49.7.36.231

2025-03-05-----2025-08-15 116.133.8.104

2024-12-09-----2024-12-11 123.126.45.197

2019-07-26-----2022-05-15 123.125.31.58

2019-07-26-----2022-05-15 49.7.37.129

2019-08-26-----2019-10-06 114.134.80.137

2019-07-26-----2019-07-30 47.254.14.164