iP or domain name lookup

chinaunion.com Server iP：

Current resolution：

domain resolution record：

2022-02-17-----2023-09-24 18.140.70.202

2022-02-17-----2023-09-24 54.255.146.174

2021-09-22-----2021-12-08 129.226.103.153

2021-09-22-----2021-12-08 129.226.102.30

2021-07-24-----2021-07-24 64.190.62.111

2021-03-14-----2021-03-15 91.195.241.137

2020-03-04-----2021-01-05 149.28.22.20

2020-01-06-----2020-01-06 148.153.36.53

2019-11-15-----2019-12-03 148.153.36.51

2019-09-29-----2019-09-29 148.153.36.61

2019-08-22-----2019-08-27 203.78.142.55