| Date | IP Address |
| 2024-06-16 | 3.77.212.89 (ClassC) |
| 2024-07-22 | 18.195.107.147 (ClassC) |
| 2024-08-02 | 35.156.177.44 (ClassC) |
| 2024-11-30 | 35.156.67.32 (ClassC) |
| 2025-02-21 | 3.126.195.137 (ClassC) |
| 2025-05-04 | 18.196.6.47 (ClassC) |
| 2025-05-14 | 18.198.35.36 (ClassC) |
| 2025-09-06 | 18.185.204.131 (ClassC) |
| 2025-09-22 | 18.184.155.207 (ClassC) |
| 2025-11-05 | 3.120.56.138 (ClassC) |
| 2025-11-21 | 18.158.29.53 (ClassC) |
| Date | Domain | IP |
| mail.haufe.com | 2025-10-15 | 185.150.247.12 |
| app.aktuell.haufe.com | 2025-08-07 | 192.29.201.85 |
| images.aktuell.haufe.com | 2023-08-09 | 104.100.168.136 |
| cdn.haufe.com | 2025-10-20 | 217.31.86.164 |
| content.smartapp.haufe.com | 2024-03-26 | 204.246.191.110 |
| api.test-sparks.haufe.com | 2024-06-16 | 3.77.212.89 |
| api.dev-sparks.haufe.com | 2024-06-16 | 18.159.156.94 |
| notification.hepta.sparks.haufe.com | 2024-06-10 | 3.67.128.230 |
| user.hepta.sparks.haufe.com | 2024-06-16 | 54.93.142.251 |
| api.sparks.haufe.com | 2024-06-09 | 35.158.141.245 |
| teampact.haufe.com | 2025-11-15 | 54.37.94.192 |
| myaccount.haufe.com | 2025-05-12 | 18.158.29.156 |
| preview.wwi.myaccount.haufe.com | 2025-04-05 | 3.74.10.55 |
| www.haufe.com | 2023-08-09 | 44.227.170.101 |