iP or domain name lookup

user1.fxsfx.com Server iP：

Current resolution：

domain resolution record：

2017-08-20-----2017-09-05 104.17.255.74

2017-08-20-----2017-09-04 104.17.252.74

2017-08-20-----2017-09-04 104.17.254.74

2017-08-20-----2017-09-04 104.17.1.75

2017-08-25-----2017-09-04 104.17.253.74

2017-07-17-----2017-07-17 104.160.163.45

2017-07-17-----2017-07-17 70.39.124.67

2017-07-17-----2017-07-17 45.61.248.127

2017-07-09-----2017-07-09 119.28.66.251

2017-05-15-----2017-05-15 45.249.244.65