| Date | IP Address |
| 2021-08-07 | 13.127.66.138 (ClassC) |
| 2022-12-04 | 52.66.105.46 (ClassC) |
| 2026-01-08 | 20.192.170.8 (ClassC) |
| Date | Domain | IP |
| static.refrens.com | 2025-09-07 | 20.235.114.220 |
| api.refrens.com | 2026-01-08 | 20.192.170.8 |
| assets.refrens.com | 2024-02-16 | 3.163.24.31 |
| www.refrens.com | 2025-05-26 | 13.107.253.70 |