| Date | IP Address |
| 2017-08-28 | 184.31.196.34 (ClassC) |
| 2018-02-27 | 104.91.192.158 (ClassC) |
| 2021-01-19 | 104.96.200.184 (ClassC) |
| 2023-08-09 | 104.96.163.200 (ClassC) |
| 2024-08-13 | 23.46.17.26 (ClassC) |
| 2024-11-24 | 23.46.17.64 (ClassC) |
| 2024-12-12 | 23.46.228.170 (ClassC) |
| 2025-02-06 | 23.62.20.96 (ClassC) |
| 2025-04-07 | 23.46.228.167 (ClassC) |
| Date | Domain | IP |
| t.viessmann.hu | 2024-11-25 | 34.111.102.177 |
| www.viessmann.hu | 2023-08-09 | 104.96.163.200 |