iP or domain name lookup

blackboard.rutgers.edu Server iP：

Current resolution：

domain resolution record：

2022-05-17-----2026-01-05 23.185.0.4

2021-09-09-----2021-09-09 34.239.50.116

2021-09-09-----2021-09-09 54.85.128.244

2021-09-09-----2021-09-09 34.200.170.208

2021-01-19-----2021-02-20 107.23.206.242

2021-02-20-----2021-02-20 52.205.193.204

2021-02-20-----2021-02-20 34.193.85.10

2021-02-20-----2021-02-20 52.55.29.119

2021-01-19-----2021-01-19 107.20.77.126

2021-01-19-----2021-01-19 34.197.206.234

2021-01-19-----2021-01-19 52.55.227.204

2020-08-26-----2020-08-26 3.223.10.0

2020-08-26-----2020-08-26 3.83.72.41