| Date | IP Address |
| 2024-05-22 | 13.52.68.41 (ClassC) |
| 2025-04-17 | 99.83.175.37 (ClassC) |
| 2025-08-05 | 75.2.75.65 (ClassC) |
| Date | Domain | IP |
| stg.mercer.co.jp | 2023-08-25 | 23.196.196.138 |
| mijl.mercer.co.jp | 2024-07-25 | 2.19.142.53 |
| www.mijl.mercer.co.jp | 2023-08-25 | 2.19.142.53 |
| www.mis.mercer.co.jp | 2023-08-25 | 104.86.228.70 |
| www.mercer.co.jp | 2014-10-10 | 128.177.96.58 |