iP or domain name lookup

51xx.com Server iP：

Current resolution：

domain resolution record：

2021-07-16-----2021-10-30 72.14.185.43

2021-07-16-----2021-10-30 45.33.2.79

2021-07-16-----2021-10-30 45.56.79.23

2021-07-16-----2021-10-30 45.79.19.196

2021-07-17-----2021-10-30 173.255.194.134

2021-07-17-----2021-10-30 45.33.23.183

2021-07-16-----2021-10-23 96.126.123.244

2021-07-16-----2021-10-22 198.58.118.167

2020-12-05-----2020-12-05 52.128.23.153

2020-11-28-----2020-11-28 69.172.201.208

2020-05-10-----2020-05-11 69.172.201.153