| Date | IP Address |
| 2021-12-07 | 99.84.173.102 (ClassC) |
| 2022-05-17 | 52.85.75.92 (ClassC) |
| 2022-05-17 | 52.85.75.94 (ClassC) |
| 2023-08-23 | 204.246.191.12 (ClassC) |
| 2023-08-26 | 204.246.191.72 (ClassC) |
| 2023-11-02 | 3.161.188.19 (ClassC) |
| 2024-08-23 | 3.166.152.103 (ClassC) |
| 2024-12-12 | 3.163.189.13 (ClassC) |
| 2025-01-07 | 3.163.189.69 (ClassC) |
| 2025-01-19 | 99.84.66.111 (ClassC) |
| 2025-01-26 | 99.84.66.88 (ClassC) |
| 2025-02-22 | 99.84.66.82 (ClassC) |
| 2025-03-09 | 3.163.189.108 (ClassC) |
| 2025-08-08 | 99.84.66.67 (ClassC) |
| 2025-10-01 | 3.169.173.54 (ClassC) |
| 2026-01-24 | 3.169.173.35 (ClassC) |
| Date | Domain | IP |
| prod.fc-koeln.de | 2025-05-19 | 81.173.209.166 |
| fc-mitgliedschaft.fc-koeln.de | 2024-12-01 | 108.138.94.7 |
| www.fc-koeln.de | 2024-11-25 | 3.163.189.69 |