| Date | IP Address |
| 2020-06-28 | 13.224.209.119 (ClassC) |
| 2020-06-28 | 13.224.209.79 (ClassC) |
| 2021-07-03 | 13.226.178.101 (ClassC) |
| 2025-01-12 | 99.84.66.101 (ClassC) |
| 2025-03-03 | 3.163.189.41 (ClassC) |
| 2025-12-27 | 3.163.189.71 (ClassC) |
| 2026-02-25 | 3.175.34.81 (ClassC) |
| Date | Domain | IP |
| assets.relationsgroup.co.jp | 2024-07-14 | 18.161.6.39 |
| recruit.relationsgroup.co.jp | 2025-01-12 | 99.84.66.101 |
| www.relationsgroup.co.jp | 2024-06-30 | 99.84.66.128 |