iP or domain name lookup

union.dangdang.com Server iP：

Current resolution：

domain resolution record：

2023-09-10-----2024-03-07 221.122.85.69

2024-03-07-----2024-03-07 120.133.44.197

2021-10-06-----2023-09-10 120.133.46.125

2021-07-09-----2021-10-29 221.122.104.41

2017-09-03-----2021-06-14 221.122.86.179

2017-09-24-----2021-06-14 221.122.85.180

2020-11-10-----2021-06-14 120.133.44.175

2020-11-10-----2020-11-10 120.133.45.74

2017-09-12-----2020-02-05 60.29.254.167

2017-09-12-----2020-02-05 60.29.241.250

2016-02-13-----2016-02-13 119.90.58.197