| Date | IP Address |
| 2018-08-27 | 52.50.98.182 (ClassC) |
| 2023-08-15 | 34.249.45.186 (ClassC) |
| 2024-01-27 | 99.80.40.82 (ClassC) |
| 2024-06-16 | 52.50.222.214 (ClassC) |
| 2024-09-22 | 63.33.2.183 (ClassC) |
| 2024-10-05 | 54.220.229.129 (ClassC) |
| 2024-11-28 | 54.76.9.111 (ClassC) |
| 2025-01-12 | 46.137.136.31 (ClassC) |
| Date | Domain | IP |
| cdn-prod.oxfordreadingbuddy.com | 2024-06-13 | 18.161.6.123 |
| cdn-test.oxfordreadingbuddy.com | 2023-08-16 | 3.163.24.95 |