| Date | IP Address |
| 2024-03-24 | 57.181.0.54 (ClassC) |
| 2024-04-13 | 57.181.74.11 (ClassC) |
| 2025-01-08 | 52.193.62.8 (ClassC) |
| 2025-02-22 | 54.238.169.229 (ClassC) |
| 2025-03-01 | 54.92.85.13 (ClassC) |
| 2025-03-15 | 35.78.151.241 (ClassC) |
| 2025-04-28 | 54.150.42.212 (ClassC) |
| 2025-05-24 | 57.182.154.221 (ClassC) |
| 2025-08-23 | 57.182.126.4 (ClassC) |
| 2026-02-06 | 46.51.244.44 (ClassC) |
| Date | Domain | IP |
| stg.kuretakeso-admin.pre-check-in.com | 2025-08-22 | 18.176.212.237 |
| stg.kuretakeso.pre-check-in.com | 2024-04-13 | 18.179.243.157 |