iP or domain name lookup

51sj.site Server iP：

Current resolution：

domain resolution record：

2023-12-30-----2024-04-28 223.75.236.241

2021-11-14-----2023-07-19 35.190.86.47

2020-10-02-----2021-07-07 172.67.188.27

2021-01-15-----2021-07-07 104.21.7.244

2020-10-02-----2021-01-10 104.28.9.150

2020-10-02-----2021-01-10 104.28.8.150