iP or domain name lookup

nust.sinaapp.com Server iP：

Current resolution：

domain resolution record：

2023-08-21-----2023-08-21 127.0.0.1

2019-07-12-----2019-10-28 220.181.136.170

2019-07-12-----2019-10-28 220.181.136.150

2017-08-28-----2018-01-17 202.108.35.235

2017-08-28-----2018-01-17 202.108.35.250

2017-08-26-----2017-08-28 202.108.35.194

2017-08-26-----2017-08-28 202.108.35.237

2017-04-11-----2017-04-21 202.108.35.224

2017-04-11-----2017-04-21 220.181.136.27

2017-04-11-----2017-04-21 202.108.35.225

2017-04-21-----2017-04-21 220.181.136.41

2017-04-11-----2017-04-11 220.181.136.43