iP or domain name lookup

cn4.grunt.wowchina.com Server iP：

Current resolution：

domain resolution record：

2019-10-09-----2019-10-09 79.124.78.105

2019-09-30-----2019-09-30 79.124.78.101

2016-11-05-----2017-08-12 54.223.142.166

2016-11-05-----2017-08-12 54.222.235.184

2017-05-14-----2017-05-14 54.223.59.206

2017-05-14-----2017-05-14 54.223.178.182

2017-01-10-----2017-01-18 54.222.245.170

2017-01-10-----2017-01-18 54.223.135.73