| Date | IP Address |
| 2019-10-15 | 52.219.112.187 (ClassC) |
| 2019-10-28 | 52.219.112.219 (ClassC) |
| 2019-10-30 | 52.219.120.187 (ClassC) |
| 2019-11-02 | 52.219.116.155 (ClassC) |
| 2023-08-06 | 54.219.142.55 (ClassC) |
| 2023-08-13 | 54.177.65.16 (ClassC) |
| 2023-08-26 | 52.52.65.51 (ClassC) |
| 2023-11-01 | 54.67.58.84 (ClassC) |
| 2023-11-11 | 13.56.167.68 (ClassC) |
| 2024-01-12 | 52.8.124.61 (ClassC) |
| 2024-01-27 | 52.52.90.29 (ClassC) |
| 2024-03-05 | 52.8.70.61 (ClassC) |
| 2024-03-10 | 50.18.214.215 (ClassC) |
| 2024-04-03 | 54.183.251.140 (ClassC) |
| 2024-04-21 | 52.9.90.189 (ClassC) |
| 2024-04-28 | 54.219.157.153 (ClassC) |
| 2024-05-05 | 54.241.176.117 (ClassC) |
| 2024-05-11 | 54.215.233.89 (ClassC) |
| 2024-05-18 | 54.67.28.160 (ClassC) |
| 2024-05-25 | 54.219.154.115 (ClassC) |
| 2024-06-03 | 54.193.247.4 (ClassC) |
| 2024-06-10 | 52.8.24.6 (ClassC) |
| 2024-06-17 | 54.241.200.151 (ClassC) |
| 2025-10-21 | 141.193.213.11 (ClassC) |
| 2025-11-30 | 141.193.213.10 (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 |