| Date | IP Address |
| 2016-10-26 | 52.51.141.214 (ClassC) |
| 2024-07-06 | 54.72.230.135 (ClassC) |
| 2024-08-28 | 34.250.78.6 (ClassC) |
| 2024-12-27 | 52.19.220.65 (ClassC) |
| 2025-05-09 | 34.251.60.38 (ClassC) |
| 2025-08-21 | 63.32.15.70 (ClassC) |
| 2025-09-05 | 54.217.240.113 (ClassC) |
| 2025-09-29 | 54.228.57.253 (ClassC) |
| 2026-02-16 | 54.154.54.91 (ClassC) |
| 2026-02-26 | 52.213.228.193 (ClassC) |
| Date | Domain | IP |
| burgum.wintertijdchallenge.nl | 2024-08-15 | 52.19.159.185 |
| hoogeveen.wintertijdchallenge.nl | 2024-08-26 | 34.250.78.6 |
| sportfondsen.wintertijdchallenge.nl | 2024-08-25 | 34.252.35.44 |
| www.sportfondsen.wintertijdchallenge.nl | 2024-04-08 | 52.210.116.233 |
| matrixfitness.wintertijdchallenge.nl | 2024-08-12 | 52.19.159.185 |
| optisport.wintertijdchallenge.nl | 2021-02-26 | 34.252.54.184 |
| www.optisport.wintertijdchallenge.nl | 2024-04-07 | 3.248.143.212 |
| www.wintertijdchallenge.nl | 2024-07-06 | 54.72.230.135 |