| Date | IP Address |
| 2017-12-13 | 54.69.140.29 (ClassC) |
| 2019-10-12 | 35.162.74.115 (ClassC) |
| 2021-02-24 | 52.39.51.203 (ClassC) |
| 2024-07-19 | 104.22.61.218 (ClassC) |
| 2024-08-27 | 172.67.20.83 (ClassC) |
| 2025-01-17 | 104.22.60.218 (ClassC) |
| Date | Domain | IP |
| email.practiceexam.hrci.org | 2019-10-12 | 35.162.74.115 |
| support.hrci.org | 2024-10-08 | 3.213.222.238 |
| www.hrci.org | 2017-05-31 | 13.32.188.65 |