| Date | IP Address |
| 2024-12-09 | 88.221.154.243 (ClassC) |
| 2024-12-20 | 23.198.174.145 (ClassC) |
| 2025-02-07 | 104.100.52.30 (ClassC) |
| 2025-03-01 | 23.5.240.173 (ClassC) |
| 2025-04-21 | 23.6.96.221 (ClassC) |
| 2025-06-12 | 198.246.106.49 (ClassC) |
| 2025-08-02 | 198.246.102.49 (ClassC) |
| Date | Domain | IP |
| www.vaccine.gov | 2024-04-02 | 198.246.102.49 |