| Date | IP Address |
| 2024-06-28 | 52.169.5.52 (ClassC) |
| 2025-02-19 | 104.26.13.88 (ClassC) |
| 2025-02-28 | 104.26.12.88 (ClassC) |
| 2025-03-30 | 172.67.68.82 (ClassC) |
| Date | Domain | IP |
| owa.buerklin.com | 2024-05-13 | 91.25.221.220 |
| autodiscover.buerklin.com | 2023-08-26 | 52.96.119.120 |
| www.buerklin.com | 2024-05-13 | 13.107.213.70 |