| Date | IP Address |
| 2021-07-27 | 13.225.66.88 (ClassC) |
| 2025-01-26 | 99.86.38.127 (ClassC) |
| 2025-03-17 | 3.163.24.42 (ClassC) |
| 2025-04-23 | 3.163.24.102 (ClassC) |
| 2025-09-17 | 3.163.24.26 (ClassC) |
| 2025-11-30 | 3.163.24.2 (ClassC) |
| Date | Domain | IP |
| app-ap-southeast-2-australia.checkster.com | 2024-10-05 | 54.206.231.130 |
| randstadusa.checkster.com | 2025-02-08 | 52.8.109.73 |
| app-eu-central-1-europe.checkster.com | 2024-03-25 | 18.197.255.107 |
| prod-bi.checkster.com | 2025-10-29 | 3.226.37.44 |
| eu-integration.checkster.com | 2025-01-26 | 99.86.38.127 |
| matomo.checkster.com | 2024-09-30 | 52.53.109.129 |
| app.checkster.com | 2023-08-16 | 54.177.65.16 |
| au-app.checkster.com | 2024-10-05 | 13.54.76.135 |
| www.checkster.com | 2024-05-13 | 199.60.103.30 |