iP or domain name lookup

exchange.appspot.com Server iP：

Current resolution：

domain resolution record：

2023-02-06-----2024-03-18 142.251.42.212

2024-03-18-----2024-03-18 172.217.16.212

2024-03-18-----2024-03-18 142.250.68.52

2024-03-18-----2024-03-18 142.251.10.153

2020-12-07-----2023-02-06 74.125.24.153

2023-02-06-----2023-02-06 142.250.186.116

2023-02-06-----2023-02-06 142.250.72.148

2020-12-22-----2020-12-22 69.171.235.101

2020-12-22-----2020-12-22 216.58.197.116

2020-12-22-----2020-12-22 31.13.69.169

2020-12-22-----2020-12-22 31.13.85.16

2020-12-22-----2020-12-22 74.86.151.162

2020-12-22-----2020-12-22 31.13.85.34

2020-12-22-----2020-12-22 162.125.32.12

2020-12-22-----2020-12-22 31.13.97.248

2020-12-22-----2020-12-22 156.233.67.243

2020-12-22-----2020-12-22 172.217.160.84

2020-12-22-----2020-12-22 104.244.43.182

2020-12-07-----2020-12-07 172.217.4.148

2020-12-07-----2020-12-07 172.217.11.180

2020-12-07-----2020-12-07 142.250.74.212

2020-12-07-----2020-12-07 172.217.194.153

2020-12-07-----2020-12-07 172.217.16.180