| Date | IP Address |
| 2019-04-13 | 185.47.197.16 (ClassC) |
| 2019-12-13 | 185.47.196.96 (ClassC) |
| 2020-05-11 | 185.47.198.1 (ClassC) |
| 2023-08-26 | 20.126.168.204 (ClassC) |
| 2023-11-02 | 20.73.106.214 (ClassC) |
| 2025-01-07 | 136.243.147.81 (ClassC) |
| 2025-06-25 | 172.67.178.246 (ClassC) |
| 2025-11-22 | 213.132.197.99 (ClassC) |
| 2026-02-13 | 104.21.17.254 (ClassC) |
| Date | Domain | IP |
| www.studers.nl | 2023-11-02 | 20.73.106.214 |