iP or domain name lookup

mail.1an.com Server iP：

Current resolution：

domain resolution record：

2022-12-12-----2023-08-02 47.246.109.206

2023-08-02-----2023-08-02 47.246.146.253

2023-08-02-----2023-08-02 47.246.137.46

2021-12-17-----2022-12-12 59.82.15.78

2021-12-17-----2022-12-12 59.82.9.177

2021-12-17-----2022-12-12 59.82.44.105

2022-12-12-----2022-12-12 59.82.43.117

2021-12-17-----2021-12-17 47.89.74.71