| Date | IP Address |
| 2020-05-20 | 13.224.209.102 (ClassC) |
| 2020-05-20 | 13.224.209.127 (ClassC) |
| 2024-09-27 | 13.224.14.119 (ClassC) |
| 2025-04-20 | 18.161.6.93 (ClassC) |
| Date | Domain | IP |
| admin.stg02.gratica.okwave.jp | 2024-03-05 | 99.84.66.3 |
| admin.dev03.gratica.okwave.jp | 2023-12-20 | 18.155.192.108 |
| admin.dev04.gratica.okwave.jp | 2024-03-02 | 3.163.24.79 |
| admin.gratica.okwave.jp | 2024-08-30 | 18.161.6.97 |