iP or domain name lookup

yanjiuseng.com Server iP：

Current resolution：

domain resolution record：

2025-12-07-----2025-12-12 104.143.45.247

2025-09-26-----2025-11-30 20.2.65.247

2021-02-12-----2024-02-25 47.91.170.222

2023-12-17-----2023-12-17 45.33.23.183

2023-10-05-----2023-10-05 182.43.124.6

2022-03-18-----2022-03-18 198.58.118.167

2022-03-17-----2022-03-17 96.126.123.244

2019-10-06-----2021-06-15 148.153.36.51

2020-02-22-----2021-01-25 149.28.22.20

2020-12-03-----2020-12-10 52.128.23.153

2020-01-04-----2020-01-04 148.153.36.53

2019-10-06-----2019-10-07 148.153.36.61