iP or domain name lookup

gov.ruangguru.com Server iP：

Current resolution：

domain resolution record：

2022-01-19-----2023-01-23 104.18.2.2

2022-01-19-----2023-01-23 104.18.3.2

2020-11-27-----2021-03-07 104.19.139.56

2021-01-05-----2021-03-07 104.19.143.56

2020-11-27-----2021-01-07 104.19.141.56

2021-01-05-----2021-01-07 104.19.142.56

2020-11-27-----2020-11-27 104.19.140.56

2020-04-12-----2020-06-06 104.19.132.111

2020-04-12-----2020-06-06 104.19.133.111