iP or domain name lookup

web.56-51.com Server iP：

Current resolution：

domain resolution record：

2021-06-24-----2021-06-24 47.111.82.157

2017-04-22-----2017-04-22 61.242.110.180

2016-12-25-----2016-12-25 61.242.110.150

2016-12-23-----2016-12-23 61.242.110.171

2016-12-13-----2016-12-13 61.242.110.64

2016-12-11-----2016-12-11 61.242.110.15