| Date | IP Address |
| 2015-10-23 | 54.230.88.219 (ClassC) |
| 2015-11-13 | 54.192.37.46 (ClassC) |
| 2015-11-16 | 204.246.169.106 (ClassC) |
| 2023-12-19 | 13.33.174.38 (ClassC) |
| 2024-07-16 | 99.84.66.110 (ClassC) |
| 2025-05-04 | 99.84.66.59 (ClassC) |
| 2025-05-12 | 99.84.66.33 (ClassC) |
| Date | Domain | IP |
| blog.roberthalf.ca | 2024-08-21 | 18.161.6.26 |
| collect.roberthalf.ca | 2024-12-19 | 35.71.143.211 |
| www.roberthalf.ca | 2024-07-16 | 99.84.66.110 |