iP or domain name lookup

go.college Server iP：

Current resolution：

domain resolution record：

2021-10-02-----2021-10-03 13.57.109.186

2021-10-02-----2021-10-02 52.9.59.28

2021-05-02-----2021-05-02 54.183.26.98

2021-05-02-----2021-05-02 52.9.201.217

2020-11-20-----2020-11-20 54.177.3.140

2020-11-20-----2020-11-20 52.52.204.211

2019-09-20-----2019-11-19 52.8.41.141

2019-11-17-----2019-11-19 50.18.76.142

2019-09-20-----2019-11-10 52.52.129.186