| Date | IP Address |
| 2023-10-31 | 172.67.74.204 (ClassC) |
| 2024-04-14 | 104.26.10.87 (ClassC) |
| 2024-07-24 | 91.195.240.94 (ClassC) |
| 2026-02-16 | 172.67.144.124 (ClassC) |
| Date | Domain | IP |
| reader033.cupdf.com | 2023-10-31 | 65.21.230.32 |
| reader036.cupdf.com | 2024-04-13 | 65.108.105.241 |
| www.cupdf.com | 2023-10-31 | 172.67.74.204 |