| Date | IP Address |
| 2018-07-31 | 176.9.119.93 (ClassC) |
| 2019-10-26 | 176.9.119.89 (ClassC) |
| 2026-03-01 | 85.236.56.246 (ClassC) |
| Date | Domain | IP |
| mail.dr-ruppert.de | 2026-01-27 | 62.116.165.245 |
| webmail.dr-ruppert.de | 2025-12-01 | 62.116.165.245 |
| www.dr-ruppert.de | 2026-03-01 | 85.236.56.246 |