| Date | IP Address |
| 2019-04-13 | 52.84.134.147 (ClassC) |
| 2019-04-13 | 52.84.134.86 (ClassC) |
| 2019-07-17 | 143.204.29.75 (ClassC) |
| 2019-07-17 | 143.204.29.127 (ClassC) |
| 2019-07-17 | 143.204.29.21 (ClassC) |
| 2020-03-15 | 143.204.35.35 (ClassC) |
| 2024-11-03 | 104.22.74.124 (ClassC) |
| 2025-02-26 | 104.22.75.124 (ClassC) |
| 2025-04-09 | 172.67.15.205 (ClassC) |
| Date | Domain | IP |
| www.recruit-holdings.jp | 2024-07-26 | 104.22.74.124 |