iP or domain name lookup

lhaa0551a.cnvpn.org Server iP：

Current resolution：

domain resolution record：

2019-12-10-----2019-12-10 221.237.78.195

2019-09-05-----2019-09-05 221.237.78.214

2019-07-29-----2019-07-29 221.237.105.184

2019-06-18-----2019-06-18 125.69.29.255

2017-11-14-----2017-11-14 218.89.238.56

2017-10-15-----2017-10-15 171.217.104.164

2017-10-15-----2017-10-15 171.212.112.79

2017-10-12-----2017-10-12 171.212.114.113

2017-10-12-----2017-10-12 100.64.67.25

2017-05-03-----2017-05-03 171.212.112.182

2017-01-11-----2017-01-11 171.212.115.143

2017-01-10-----2017-01-10 171.212.115.195

2016-12-16-----2016-12-17 171.212.115.159

2016-12-16-----2016-12-16 171.212.115.37

2016-12-09-----2016-12-09 171.212.115.43

2016-12-09-----2016-12-09 171.212.115.146