| Date | IP Address |
| 2019-12-02 | 204.75.127.159 (ClassC) |
| 2021-12-20 | 54.192.137.38 (ClassC) |
| 2022-06-13 | 52.222.149.22 (ClassC) |
| 2023-11-16 | 204.246.191.4 (ClassC) |
| 2024-04-26 | 204.246.191.65 (ClassC) |
| 2024-09-30 | 99.84.66.33 (ClassC) |
| 2024-11-21 | 99.84.66.110 (ClassC) |
| 2024-12-19 | 18.65.229.9 (ClassC) |
| 2025-01-12 | 18.65.229.12 (ClassC) |
| 2025-02-28 | 18.65.229.18 (ClassC) |
| 2025-03-09 | 18.65.229.71 (ClassC) |
| 2025-07-23 | 99.84.66.67 (ClassC) |
| 2025-08-20 | 99.84.66.59 (ClassC) |
| 2025-12-15 | 3.163.24.42 (ClassC) |
| Date | Domain | IP |
| blog.roberthalf.ca | 2024-08-21 | 18.161.6.26 |
| collect.roberthalf.ca | 2025-05-15 | 52.223.16.43 |
| www.roberthalf.ca | 2025-05-04 | 99.84.66.59 |