iP or domain name lookup

tbstnt.helpshift.com Server iP：

Current resolution：

domain resolution record：

2021-03-06-----2021-03-06 52.52.41.62

2021-03-06-----2021-03-06 13.56.198.215

2021-03-06-----2021-03-06 52.9.78.248

2021-03-06-----2021-03-06 52.9.212.21

2021-03-06-----2021-03-06 54.219.145.134

2021-03-06-----2021-03-06 13.57.163.172

2021-03-06-----2021-03-06 52.52.155.137

2021-03-06-----2021-03-06 54.215.198.174

2021-03-06-----2021-03-06 54.183.77.71

2021-03-06-----2021-03-06 52.53.39.70

2021-03-06-----2021-03-06 52.8.34.18

2021-03-06-----2021-03-06 52.52.129.29

2020-07-17-----2020-07-17 54.215.202.46

2020-07-17-----2020-07-17 13.57.108.37

2020-07-17-----2020-07-17 54.215.227.127

2020-07-17-----2020-07-17 52.8.82.54