| Date | IP Address |
| 2023-08-26 | 140.95.207.100 (ClassC) |
| 2024-11-07 | 18.188.128.145 (ClassC) |
| 2025-03-01 | 18.217.251.129 (ClassC) |
| 2025-05-06 | 3.20.32.97 (ClassC) |
| 2026-03-02 | 99.83.188.150 (ClassC) |
| Date | Domain | IP |
| api-wechat-uat.hyatt.cn | 2024-03-07 | 23.41.4.91 |
| support.hyatt.cn | 2025-07-03 | 139.219.3.213 |
| www.hyatt.cn | 2024-12-24 | 23.46.228.177 |