| Date | Domain | IP |
| 65-66.stcusa.com | 2024-08-02 | 3.216.221.221 |
| experience.stcusa.com | 2025-05-17 | 23.44.205.136 |
| course.stcusa.com | 2025-07-29 | 104.18.7.183 |
| stage-course.stcusa.com | 2025-09-02 | 104.18.6.183 |
| test-course.stcusa.com | 2025-07-29 | 104.18.7.183 |
| studentapi.stcusa.com | 2024-11-22 | 18.161.6.52 |
| learn.stcusa.com | 2024-09-16 | 104.18.6.183 |
| stage-learn.stcusa.com | 2025-09-02 | 104.18.6.183 |
| test-learn.stcusa.com | 2025-08-13 | 104.18.7.183 |
| dev-learn.stcusa.com | 2025-09-02 | 104.18.7.183 |
| test-partner.stcusa.com | 2025-07-29 | 104.18.7.183 |
| api-ms.stcusa.com | 2024-06-16 | 104.18.20.199 |
| my.stcusa.com | 2023-12-20 | 13.227.74.60 |