| Date | IP Address |
| 2016-11-22 | 52.51.141.214 (ClassC) |
| 2024-04-10 | 3.248.143.212 (ClassC) |
| 2024-08-26 | 52.30.132.194 (ClassC) |
| 2024-09-10 | 99.80.80.41 (ClassC) |
| 2025-01-16 | 52.213.52.176 (ClassC) |
| 2025-04-21 | 52.51.253.104 (ClassC) |
| 2025-06-26 | 54.154.242.124 (ClassC) |
| 2025-08-02 | 18.203.206.54 (ClassC) |
| Date | Domain | IP |
| www.deelnemers.zuiderzeeklassieker.nl | 2024-08-24 | 34.250.78.6 |