iP or domain name lookup

ibt2-cloud.ets.org Server iP：

Current resolution：

domain resolution record：

2020-11-26-----2024-03-14 52.70.49.116

2021-03-26-----2024-03-14 18.215.22.185

2021-04-29-----2024-03-14 52.0.229.231

2017-05-22-----2021-07-10 52.6.211.54

2020-11-26-----2021-07-10 35.170.148.169

2020-05-29-----2021-03-30 52.21.141.104

2020-05-29-----2021-03-30 52.0.160.107

2017-05-22-----2019-07-15 52.3.73.69

2019-07-15-----2019-07-15 54.236.220.164

2019-07-15-----2019-07-15 52.86.218.18

2017-05-22-----2017-05-22 54.209.212.222