| Date | IP Address |
| 2024-05-23 | 13.249.98.57 (ClassC) |
| 2024-05-23 | 54.230.31.83 (ClassC) |
| 2025-04-16 | 204.246.191.9 (ClassC) |
| 2025-05-18 | 204.246.191.34 (ClassC) |
| 2025-07-04 | 204.246.191.124 (ClassC) |
| 2025-08-23 | 99.84.66.4 (ClassC) |
| 2026-01-31 | 3.169.173.2 (ClassC) |
| Date | Domain | IP |
| cfront.staging.preply.org | 2025-11-24 | 18.161.6.98 |
| sentry-ext.tooling.preply.org | 2025-06-28 | 34.243.125.197 |
| cfront.preply.org | 2025-04-16 | 204.246.191.9 |
| sentry-ext.preply.org | 2024-07-05 | 18.161.6.20 |
| www.preply.org | 2024-07-30 | 52.50.189.156 |