iP or domain name lookup

book.sina.cn Server iP：

Current resolution：

domain resolution record：

2023-12-19-----2024-03-11 49.7.36.86

2023-12-19-----2024-03-11 202.108.0.131

2019-06-24-----2023-11-24 49.7.37.46

2019-06-24-----2023-11-24 123.126.45.98

2019-06-24-----2020-03-16 39.156.6.176

2018-05-08-----2019-03-04 221.179.175.207

2019-03-04-----2019-03-04 123.126.45.68

2017-08-01-----2018-05-10 123.125.22.249

2017-12-09-----2018-05-08 180.149.136.195

2017-08-01-----2018-01-17 221.179.190.250

2017-08-29-----2017-08-29 120.198.231.15

2017-08-27-----2017-08-27 120.198.231.16

2017-08-01-----2017-08-01 120.198.231.20