| Date | IP Address |
| 2021-05-18 | 52.85.151.123 (ClassC) |
| 2021-05-18 | 52.85.151.3 (ClassC) |
| 2021-05-18 | 52.85.151.78 (ClassC) |
| 2021-05-19 | 99.84.253.16 (ClassC) |
| 2021-05-19 | 13.225.230.68 (ClassC) |
| 2021-05-19 | 99.84.253.17 (ClassC) |
| 2021-05-19 | 99.84.253.4 (ClassC) |
| 2022-04-19 | 54.192.122.93 (ClassC) |
| 2024-08-28 | 99.84.66.76 (ClassC) |
| 2025-01-04 | 99.86.38.68 (ClassC) |
| 2025-08-04 | 204.246.191.98 (ClassC) |
| 2025-09-01 | 99.84.66.33 (ClassC) |
| 2025-09-08 | 3.169.173.127 (ClassC) |
| 2026-01-07 | 3.169.173.110 (ClassC) |
| 2026-01-30 | 3.175.34.93 (ClassC) |
| Date | Domain | IP |
| bxsearch.dev.ielts.com | 2025-04-28 | 18.161.6.93 |
| api.inspera-speaking-integration.dev.ielts.com | 2024-06-09 | 52.76.34.36 |
| sb.bx.dev.ielts.com | 2024-09-13 | 204.246.191.24 |
| backoffice.bx.dev.ielts.com | 2024-08-28 | 99.84.66.76 |