| Date | IP Address |
| 2025-02-23 | 15.197.167.90 (ClassC) |
| 2026-02-28 | 3.33.186.135 (ClassC) |
| Date | Domain | IP |
| 2021.checkr.com | 2024-08-11 | 54.177.145.149 |
| dashboard.checkr.com | 2025-09-11 | 104.18.227.229 |
| candidate.checkr.com | 2023-08-16 | 104.17.25.40 |
| candidate-portal-bff.checkr.com | 2023-08-16 | 104.17.25.40 |
| engineering.checkr.com | 2025-02-23 | 15.197.167.90 |
| www.engineering.checkr.com | 2025-03-15 | 3.33.186.135 |
| api.checkr.com | 2023-08-15 | 104.17.25.40 |
| email.checkr.com | 2025-07-26 | 104.18.228.229 |
| docs.checkr.com | 2024-04-19 | 54.173.80.61 |
| assets.checkr.com | 2023-08-16 | 104.17.25.40 |
| api-status.checkr.com | 2023-08-15 | 104.17.24.40 |
| www.checkr.com | 2023-11-02 | 23.185.0.2 |
| apply.checkr.com | 2023-08-16 | 104.17.24.40 |