iP or domain name lookup

course.ouie.cn Server iP：

Current resolution：

domain resolution record：

2021-01-11-----2021-01-11 103.152.226.29

2021-01-11-----2021-01-11 45.137.11.85

2021-01-11-----2021-01-11 27.124.38.30

2021-01-11-----2021-01-11 45.137.11.110

2021-01-11-----2021-01-11 143.92.57.66

2021-01-11-----2021-01-11 103.38.81.246

2021-01-11-----2021-01-11 45.137.11.106

2021-01-11-----2021-01-11 134.122.135.184

2021-01-11-----2021-01-11 154.196.134.207

2021-01-11-----2021-01-11 103.228.169.13

2021-01-11-----2021-01-11 103.38.82.188

2021-01-11-----2021-01-11 154.196.134.251