| Date | IP Address |
| 2020-06-01 | 52.68.154.249 (ClassC) |
| 2024-11-25 | 35.74.191.189 (ClassC) |
| 2025-03-24 | 57.182.103.196 (ClassC) |
| 2025-07-09 | 52.69.18.126 (ClassC) |
| 2025-08-24 | 35.79.201.17 (ClassC) |
| 2026-02-07 | 54.249.190.157 (ClassC) |
| Date | Domain | IP |
| verify-keirin.api.netkeiba.org | 2025-09-08 | 35.186.201.172 |
| sp.netkeiba.org | 2024-11-25 | 35.74.191.189 |
| www.netkeiba.org | 2024-11-25 | 52.196.152.46 |