iP or domain name lookup

if.cert.org.cn Server iP：

Current resolution：

domain resolution record：

2019-07-12-----2023-04-15 202.108.211.58

2017-01-02-----2017-01-02 153.37.232.90

2017-01-01-----2017-01-01 61.155.222.195

2016-12-31-----2016-12-31 61.155.222.149

2016-12-31-----2016-12-31 117.23.1.203

2016-12-31-----2016-12-31 117.23.1.236

2016-12-31-----2016-12-31 61.155.222.194

2016-12-31-----2016-12-31 113.200.91.245

2016-12-31-----2016-12-31 113.200.91.208

2016-12-31-----2016-12-31 111.13.147.225