| Date | IP Address |
| 2022-05-03 | 23.47.218.70 (ClassC) |
| 2023-08-26 | 104.100.168.169 (ClassC) |
| 2024-07-09 | 23.55.167.18 (ClassC) |
| 2024-09-02 | 23.54.19.195 (ClassC) |
| 2024-09-18 | 23.192.230.142 (ClassC) |
| 2024-12-26 | 23.192.230.152 (ClassC) |
| Date | Domain | IP |
| accept.pfizerpspmodelingtool.com | 2024-03-18 | 23.192.230.152 |