iP or domain name lookup

bitdefender.es Server iP：

Current resolution：

domain resolution record：

2019-07-17-----2019-12-06 104.20.139.46

2019-07-17-----2019-12-06 104.20.138.46

2016-12-16-----2017-01-07 104.25.115.107

2016-12-16-----2017-01-05 104.25.116.107

2016-12-08-----2016-12-08 54.72.67.15

2016-12-05-----2016-12-07 52.209.89.211

2016-12-05-----2016-12-07 54.171.213.104

2016-12-07-----2016-12-07 52.28.225.144

2016-12-05-----2016-12-05 52.58.58.175