iP or domain name lookup

smtp.googlemail.com Server iP：

Current resolution：

domain resolution record：

2019-05-05-----2023-05-23 74.125.203.16

2019-05-05-----2023-05-23 64.233.189.16

2019-06-03-----2023-05-23 74.125.204.16

2019-06-20-----2023-05-23 64.233.188.16

2023-05-23-----2023-05-23 173.194.174.16

2023-05-23-----2023-05-23 142.251.170.16

2023-05-23-----2023-05-23 142.251.8.16

2023-05-23-----2023-05-23 142.250.157.16

2019-05-05-----2021-06-08 108.177.97.16

2019-05-05-----2021-06-08 108.177.125.16

2019-05-05-----2021-06-08 64.233.187.16

2019-07-09-----2021-06-08 74.125.23.16

2020-11-24-----2020-11-24 173.194.76.16

2020-11-24-----2020-11-24 74.125.137.16

2020-11-24-----2020-11-24 74.125.200.16