iP or domain name lookup

wx.aircourses.com Server iP：

Current resolution：

domain resolution record：

2021-01-20-----2021-01-20 27.128.214.226

2021-01-20-----2021-01-20 175.6.49.239

2021-01-20-----2021-01-20 175.6.49.241

2021-01-20-----2021-01-20 112.30.222.2

2021-01-20-----2021-01-20 112.28.200.242

2021-01-20-----2021-01-20 112.30.196.239

2021-01-20-----2021-01-20 117.34.82.217

2021-01-20-----2021-01-20 27.128.214.224

2021-01-20-----2021-01-20 120.39.202.101

2021-01-20-----2021-01-20 123.6.12.234

2021-01-20-----2021-01-20 123.138.154.34

2021-01-20-----2021-01-20 163.181.33.225

2021-01-20-----2021-01-20 27.128.214.221

2020-07-01-----2020-07-07 42.81.61.107

2020-07-01-----2020-07-07 112.25.53.61

2020-07-01-----2020-07-07 120.240.100.48

2020-07-01-----2020-07-07 27.195.145.248

2020-07-01-----2020-07-07 223.111.207.120

2020-07-01-----2020-07-07 49.79.233.15

2020-07-01-----2020-07-07 58.216.109.67

2020-07-01-----2020-07-07 43.243.234.251

2020-07-01-----2020-07-07 163.171.193.236

2020-07-01-----2020-07-07 120.237.254.191

2020-07-07-----2020-07-07 183.131.168.194

2020-07-01-----2020-07-02 103.254.190.253

2020-07-02-----2020-07-02 183.134.56.22

2020-07-01-----2020-07-01 45.124.126.29

2020-07-01-----2020-07-01 101.227.102.169