iP or domain name lookup

sedac.ciesin.columbia.edu Server iP：

Current resolution：

domain resolution record：

2020-05-16-----2023-08-09 129.236.39.166

2021-03-13-----2021-03-13 52.219.84.163

2021-03-13-----2021-03-13 52.219.105.212

2021-03-13-----2021-03-13 52.219.102.36

2021-03-13-----2021-03-13 52.219.101.188

2021-03-13-----2021-03-13 52.219.100.115

2021-03-13-----2021-03-13 52.219.98.128

2021-03-13-----2021-03-13 52.219.105.156

2021-03-13-----2021-03-13 52.219.104.147

2021-03-13-----2021-03-13 52.219.104.3

2021-03-13-----2021-03-13 52.219.101.252

2021-03-13-----2021-03-13 52.219.105.12

2021-03-13-----2021-03-13 52.219.96.83

2017-07-19-----2019-07-19 129.236.39.66