| Date | IP Address |
| 2019-10-21 | 3.223.88.38 (ClassC) |
| 2021-09-01 | 52.202.50.179 (ClassC) |
| 2024-10-08 | 3.213.222.238 (ClassC) |
| 2025-10-16 | 172.66.0.145 (ClassC) |
| 2026-02-12 | 162.159.140.147 (ClassC) |
| Date | Domain | IP |
| email.practiceexam.hrci.org | 2019-10-12 | 35.162.74.115 |
| websitecontent.hrci.org | 2026-02-05 | 162.159.140.147 |
| support.hrci.org | 2024-10-08 | 3.213.222.238 |
| www.hrci.org | 2017-05-31 | 13.32.188.65 |