| Date | IP Address |
| 2025-01-19 | 217.31.88.220 (ClassC) |
| Date | Domain | IP |
| cdh-web-simulation.haufe-akademie.akadev.de | 2024-10-19 | 3.123.58.139 |
| cdh-simulation.haufe-akademie.akadev.de | 2024-10-19 | 18.196.20.129 |
| badges.haufe-akademie.akadev.de | 2024-04-23 | 3.127.90.4 |
| test.haufe-akademie.akadev.de | 2024-10-27 | 217.31.88.220 |
| livetest.haufe-akademie.akadev.de | 2025-01-19 | 217.31.88.220 |