iP or domain name lookup

buy.ac20.pw Server iP：

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domain resolution record：

2017-06-22-----2017-06-22 42.236.94.155

2017-06-22-----2017-06-22 162.159.209.42

2017-06-22-----2017-06-22 58.211.137.155

2017-06-22-----2017-06-22 117.34.14.155

2017-06-22-----2017-06-22 125.39.174.155

2017-06-22-----2017-06-22 116.31.127.155

2017-06-22-----2017-06-22 59.51.81.229

2017-06-11-----2017-06-11 139.159.229.162

2017-06-11-----2017-06-11 103.48.169.225

2017-06-11-----2017-06-11 103.48.171.234

2017-06-11-----2017-06-11 116.31.127.217