iP or domain name lookup

frodo.douban.com Server iP：

Current resolution：

domain resolution record：

2021-08-09-----2025-10-12 140.143.177.206

2021-08-09-----2025-10-12 81.70.124.99

2024-03-25-----2025-10-12 120.53.130.158

2021-08-09-----2024-01-13 49.233.242.15

2022-01-03-----2022-01-15 129.226.98.150

2019-09-22-----2021-11-01 162.14.6.67

2019-08-15-----2021-01-29 154.8.131.172

2019-08-15-----2021-01-29 154.8.131.171

2019-08-15-----2021-01-29 154.8.131.165