| Date | IP Address |
| 2023-11-16 | 172.64.154.122 (ClassC) |
| 2024-01-15 | 104.18.33.134 (ClassC) |
| 2024-07-27 | 104.18.5.216 (ClassC) |
| 2024-09-27 | 104.18.41.200 (ClassC) |
| 2024-11-03 | 172.64.146.56 (ClassC) |
| Date | Domain | IP |
| www.pfizerclinicaltrials.com | 2024-09-28 | 104.18.41.200 |