iP or domain name lookup

b2021.com Server iP：

Current resolution：

domain resolution record：

2023-02-14-----2023-04-09 54.161.222.85

2023-02-14-----2023-04-09 34.205.242.146

2023-02-14-----2023-04-09 54.209.32.212

2023-02-24-----2023-04-09 3.140.13.188

2023-04-02-----2023-04-09 3.130.204.160

2023-04-02-----2023-04-09 3.94.41.167

2023-04-02-----2023-04-09 18.119.154.66

2023-02-14-----2023-04-05 3.18.7.81

2023-02-14-----2023-04-05 52.86.6.113

2023-02-24-----2023-04-04 52.71.57.184

2023-02-24-----2023-04-02 3.130.253.23

2023-04-02-----2023-04-02 3.19.116.195

2022-02-02-----2022-02-02 206.237.145.73

2021-02-04-----2021-06-12 142.4.107.40

2020-07-23-----2020-08-13 58.82.201.7