iP or domain name lookup

dotnet.github.io Server iP：

Current resolution：

domain resolution record：

2019-07-12-----2023-08-05 185.199.108.153

2019-07-12-----2023-08-05 185.199.109.153

2019-07-12-----2023-08-05 185.199.111.153

2019-07-12-----2023-08-01 185.199.110.153

2020-08-31-----2020-08-31 127.0.0.1

2017-06-26-----2017-06-27 151.101.72.133

2017-06-26-----2017-06-26 151.101.88.133

2017-06-26-----2017-06-26 151.101.128.133

2017-06-26-----2017-06-26 151.101.76.133

2017-06-26-----2017-06-26 151.101.0.133