iP or domain name lookup

1.client-channel.google.com Server iP：

Current resolution：

domain resolution record：

2017-07-02-----2023-12-23 64.233.188.189

2023-01-22-----2023-12-23 142.251.2.189

2023-05-24-----2023-12-23 173.194.76.189

2023-12-23-----2023-12-23 142.251.175.189

2017-07-02-----2023-05-24 108.177.97.189

2023-05-24-----2023-05-24 74.125.68.189

2017-07-02-----2023-01-22 74.125.204.189

2019-07-27-----2023-01-22 108.177.125.189

2023-01-22-----2023-01-22 142.251.10.189

2017-07-02-----2023-01-16 64.233.189.189

2017-07-02-----2023-01-16 74.125.203.189

2019-07-27-----2023-01-16 64.233.187.189

2023-01-16-----2023-01-16 142.251.8.189

2019-08-14-----2020-12-18 74.125.23.189