| Date | IP Address |
| 2024-05-14 | 3.163.24.13 (ClassC) |
| 2024-05-29 | 3.163.24.81 (ClassC) |
| 2024-07-02 | 18.161.6.70 (ClassC) |
| 2024-08-10 | 18.161.6.52 (ClassC) |
| 2024-12-23 | 18.161.6.44 (ClassC) |
| 2025-01-28 | 3.163.189.27 (ClassC) |
| Date | Domain | IP |
| ghd.gakken.co.jp | 2024-12-20 | 18.65.229.95 |
| saiyo.gakken.co.jp | 2024-12-24 | 204.246.191.29 |
| cocofump.gakken.co.jp | 2024-07-22 | 3.163.24.110 |
| ir.gakken.co.jp | 2024-07-01 | 204.246.191.44 |
| selector.gakken.co.jp | 2024-10-22 | 52.69.162.118 |
| www.gakken.co.jp | 2024-05-14 | 3.163.24.13 |