iP or domain name lookup

douququ.net Server iP：

Current resolution：

domain resolution record：

2021-07-28-----2021-07-28 45.138.71.7

2021-06-25-----2021-06-25 127.0.0.1

2020-12-11-----2020-12-11 52.128.23.153

2018-03-30-----2018-04-01 116.62.202.192

2017-12-13-----2017-12-13 113.200.91.200

2017-12-13-----2017-12-13 117.23.61.111

2017-12-13-----2017-12-13 116.211.121.156

2017-12-13-----2017-12-13 111.47.226.171

2017-12-13-----2017-12-13 180.97.158.118