iP or domain name lookup

mychart.montefiore.org Server iP：

Current resolution：

domain resolution record：

2023-11-04-----2023-12-28 216.255.101.216

2023-02-19-----2023-02-19 23.59.252.147

2023-02-19-----2023-02-19 95.101.23.195

2023-02-19-----2023-02-19 104.107.217.87

2023-02-19-----2023-02-19 184.51.102.169

2023-02-19-----2023-02-19 184.51.102.50

2023-02-19-----2023-02-19 95.101.23.194

2023-02-19-----2023-02-19 104.124.1.58

2023-02-19-----2023-02-19 23.50.233.173

2023-02-19-----2023-02-19 104.116.243.41