iP or domain name lookup

loopexam.dcu.ie Server iP：

Current resolution：

domain resolution record：

2021-05-12-----2021-05-12 54.72.77.31

2021-05-12-----2021-05-12 52.30.153.91

2021-05-12-----2021-05-12 52.214.190.69

2021-03-21-----2021-03-21 54.229.10.44

2021-03-21-----2021-03-21 52.30.90.201

2021-03-21-----2021-03-21 52.48.22.195