iP or domain name lookup

www.rationalrobotics.com Server iP：

Current resolution：

domain resolution record：

2022-08-13-----2022-11-27 172.217.160.83

2022-08-13-----2022-11-27 142.251.42.243

2022-08-13-----2022-11-27 172.217.163.51

2022-08-13-----2022-11-27 142.251.43.19

2022-08-13-----2022-11-27 142.250.199.83

2022-08-13-----2022-11-27 172.217.160.115

2022-08-14-----2022-11-27 172.217.31.19

2022-11-01-----2022-11-27 172.217.24.243

2022-11-09-----2022-11-09 216.58.200.243

2022-11-02-----2022-11-03 142.250.66.83

2022-11-02-----2022-11-02 172.217.24.83

2022-11-02-----2022-11-02 142.250.204.83

2022-11-01-----2022-11-01 142.251.220.115

2022-11-01-----2022-11-01 172.217.24.115

2022-10-29-----2022-10-29 172.217.27.51

2022-08-23-----2022-08-23 142.250.66.51

2022-08-13-----2022-08-14 142.250.66.115

2022-08-13-----2022-08-13 172.217.27.19

2022-08-13-----2022-08-13 142.250.66.147

2019-08-14-----2019-10-13 54.186.74.32