| Date | IP Address |
| 2026-03-02 | 5.9.239.240 (ClassC) |
| Date | Domain | IP |
| autoconfig.marcel-knorr.de | 2025-06-15 | 5.9.239.241 |
| mail.marcel-knorr.de | 2025-11-16 | 5.9.239.241 |
| autodiscover.marcel-knorr.de | 2025-08-27 | 5.9.239.241 |
| git.marcel-knorr.de | 2026-02-27 | 5.9.239.242 |
| www.marcel-knorr.de | 2026-03-02 | 5.9.239.240 |