iP or domain name lookup

www.backpacker.com Server iP：

Current resolution：

domain resolution record：

2018-01-10-----2019-07-11 151.101.66.98

2018-01-10-----2019-07-11 151.101.194.98

2018-01-10-----2019-07-11 151.101.130.98

2018-01-10-----2019-07-11 151.101.2.98

2016-12-16-----2016-12-20 54.235.244.66

2016-11-04-----2016-12-19 50.17.210.217

2016-12-16-----2016-12-19 23.23.120.161

2016-12-16-----2016-12-19 54.221.231.249

2016-11-04-----2016-11-04 54.225.208.14

2016-11-04-----2016-11-04 54.225.136.66

2016-11-04-----2016-11-04 50.19.242.234