iP or domain name lookup

cloud.github.com Server iP：

Current resolution：

domain resolution record：

2017-10-25-----2017-10-25 54.182.1.189

2017-10-24-----2017-10-24 52.85.158.33

2017-10-24-----2017-10-24 54.192.212.157

2017-10-24-----2017-10-24 54.182.1.94

2017-10-24-----2017-10-24 54.192.146.20

2017-10-24-----2017-10-24 54.239.132.195

2017-10-24-----2017-10-24 54.192.212.178

2017-10-24-----2017-10-24 54.192.212.131

2017-10-24-----2017-10-24 54.182.1.132

2017-10-24-----2017-10-24 52.85.158.98

2017-10-24-----2017-10-24 52.85.158.167

2017-10-03-----2017-10-03 52.84.49.227

2017-10-02-----2017-10-02 54.192.75.68

2017-10-02-----2017-10-02 54.192.212.21

2017-10-02-----2017-10-02 54.192.212.244

2017-10-02-----2017-10-02 52.84.49.96

2017-10-02-----2017-10-02 54.182.4.243

2017-10-02-----2017-10-02 54.182.4.154

2017-10-02-----2017-10-02 54.192.143.120

2017-10-02-----2017-10-02 54.239.132.190

2017-10-02-----2017-10-02 54.192.146.157

2017-10-02-----2017-10-02 52.84.49.40

2017-10-02-----2017-10-02 54.239.132.127

2017-10-02-----2017-10-02 54.192.75.120