| Date | IP Address |
| 2023-02-10 | 18.194.200.147 (ClassC) |
| 2025-07-05 | 52.57.134.81 (ClassC) |
| 2025-09-01 | 52.57.151.7 (ClassC) |
| 2025-10-04 | 18.159.42.19 (ClassC) |
| 2025-11-22 | 18.196.38.51 (ClassC) |
| Date | Domain | IP |
| sitefusion.dam.penguinrandomhouse.de | 2024-08-09 | 3.126.65.75 |
| pdf.dev.dam.penguinrandomhouse.de | 2025-07-05 | 52.57.134.81 |
| sitefusion.dev.dam.penguinrandomhouse.de | 2024-07-22 | 52.58.235.93 |