| Date | IP Address |
| 2019-03-09 | 184.31.192.226 (ClassC) |
| 2023-08-25 | 104.86.237.13 (ClassC) |
| 2023-11-02 | 184.29.219.187 (ClassC) |
| 2023-12-17 | 184.24.195.21 (ClassC) |
| 2024-07-30 | 104.104.10.214 (ClassC) |
| 2024-11-25 | 23.198.153.218 (ClassC) |
| 2025-04-05 | 2.19.138.221 (ClassC) |
| Date | Domain | IP |
| cennik.vaillant.pl | 2024-02-29 | 99.84.66.3 |
| backoffice.cennik.vaillant.pl | 2025-01-26 | 18.65.229.20 |
| www.vaillant.pl | 2023-08-25 | 104.86.237.13 |