| Date | IP Address |
| 2024-06-09 | 52.77.81.60 (ClassC) |
| 2024-08-23 | 18.136.116.194 (ClassC) |
| 2024-11-11 | 54.179.253.20 (ClassC) |
| 2024-12-02 | 18.138.9.184 (ClassC) |
| 2025-05-07 | 13.229.16.227 (ClassC) |
| 2025-09-06 | 13.215.91.181 (ClassC) |
| 2025-09-13 | 52.220.27.35 (ClassC) |
| 2025-09-20 | 13.228.171.169 (ClassC) |
| 2026-01-07 | 47.130.125.237 (ClassC) |
| 2026-01-17 | 52.76.157.75 (ClassC) |
| Date | Domain | IP |
| api.organisation.sit.ielts.com | 2025-10-25 | 13.214.52.169 |
| api.speaking-examiner.sit.ielts.com | 2024-06-09 | 52.77.81.60 |