| Date | IP Address |
| 2020-04-09 | 23.65.230.136 (ClassC) |
| 2020-07-11 | 184.31.192.13 (ClassC) |
| 2023-08-26 | 96.17.223.210 (ClassC) |
| 2024-03-25 | 104.112.185.177 (ClassC) |
| 2024-10-02 | 23.222.148.29 (ClassC) |
| 2025-03-01 | 23.193.79.15 (ClassC) |
| 2025-04-09 | 23.198.163.25 (ClassC) |
| 2025-08-15 | 23.6.111.22 (ClassC) |
| 2025-08-28 | 88.221.156.38 (ClassC) |
| 2025-09-07 | 23.222.148.49 (ClassC) |
| 2026-01-27 | 184.25.210.185 (ClassC) |
| Date | Domain | IP |
| ns1.heidelberg.com | 2026-01-26 | 193.99.214.144 |
| ns2.heidelberg.com | 2026-01-12 | 194.5.63.144 |
| admin-ui.myhd.heidelberg.com | 2025-05-14 | 51.144.173.213 |
| pagelabel.heidelberg.com | 2024-06-03 | 52.31.27.187 |
| shop.heidelberg.com | 2023-08-25 | 23.196.199.109 |
| eshop.heidelberg.com | 2021-06-13 | 104.114.79.11 |
| autodiscover.heidelberg.com | 2026-01-12 | 193.103.16.32 |
| apigateway.maintenance.plus.heidelberg.com | 2024-12-27 | 3.120.76.186 |
| api.vmi.plus.heidelberg.com | 2025-12-27 | 52.212.53.179 |
| login.plus.heidelberg.com | 2025-02-20 | 108.139.47.23 |
| assistant.plus.heidelberg.com | 2024-12-23 | 52.84.162.80 |
| survey.heidelberg.com | 2023-08-26 | 96.17.223.210 |