| Date | IP Address |
| 2021-10-21 | 54.230.19.31 (ClassC) |
| 2021-10-22 | 54.239.174.32 (ClassC) |
| 2022-02-01 | 52.84.174.108 (ClassC) |
| 2022-02-03 | 54.192.58.92 (ClassC) |
| 2024-09-22 | 204.246.191.85 (ClassC) |
| 2025-03-08 | 52.84.162.38 (ClassC) |
| 2025-03-16 | 99.84.66.59 (ClassC) |
| 2025-04-06 | 204.246.191.16 (ClassC) |
| 2026-03-05 | 3.169.173.94 (ClassC) |
| Date | Domain | IP |
| rsb.info.nih.gov | 2025-11-22 | 137.187.200.187 |
| clinicalstudies.info.nih.gov | 2025-10-26 | 165.112.169.57 |
| rarediseases.info.nih.gov | 2025-03-09 | 3.163.24.9 |
| beta.rarediseases.info.nih.gov | 2024-09-22 | 204.246.191.85 |
| contact.rarediseases.info.nih.gov | 2025-06-21 | 18.252.199.17 |
| www.rarediseases.info.nih.gov | 2025-04-11 | 3.163.24.5 |