iP or domain name lookup

51550b.com Server iP：

Current resolution：

domain resolution record：

2022-12-30-----2023-07-13 154.95.251.249

2021-04-18-----2021-05-03 34.98.99.30

2020-04-24-----2021-04-18 23.224.14.187

2019-08-14-----2020-01-19 128.1.138.150

2019-12-20-----2020-01-19 103.72.145.166

2019-08-14-----2020-01-01 103.218.241.44

2019-12-20-----2019-12-31 103.72.147.31

2019-12-03-----2019-12-13 112.175.123.62