| Date | IP Address |
| 2013-05-01 | 212.111.5.94 (ClassC) |
| 2019-10-17 | 89.187.140.181 (ClassC) |
| 2024-09-01 | 99.80.37.24 (ClassC) |
| 2024-10-07 | 18.200.43.249 (ClassC) |
| 2024-12-27 | 52.49.68.112 (ClassC) |
| Date | Domain | IP |
| beta.dzo.cz | 2024-11-07 | 99.80.37.24 |
| www.dzo.cz | 2024-09-01 | 52.49.68.112 |