iP or domain name lookup

sd.sina.cn Server iP：

Current resolution：

domain resolution record：

2021-10-12-----2023-10-02 49.7.37.16

2021-10-12-----2023-10-02 123.126.45.156

2023-08-30-----2023-10-02 106.63.15.86

2023-08-30-----2023-10-02 36.51.224.44

2023-08-30-----2023-10-02 111.13.225.138

2021-10-12-----2023-02-17 39.156.6.144

2021-10-12-----2023-02-17 183.232.23.230

2023-02-17-----2023-02-17 36.51.224.26

2021-10-12-----2021-10-12 183.60.95.219

2021-10-12-----2021-10-12 36.51.254.90

2019-08-02-----2019-08-02 183.60.95.144

2019-08-02-----2019-08-02 203.90.242.116

2019-08-02-----2019-08-02 49.7.36.41

2019-08-02-----2019-08-02 183.232.23.233

2019-08-02-----2019-08-02 123.126.45.123

2019-08-02-----2019-08-02 221.179.193.41