| Date | IP Address |
| 2020-08-17 | 13.224.38.19 (ClassC) |
| 2020-08-17 | 13.224.38.53 (ClassC) |
| 2022-06-01 | 143.204.225.76 (ClassC) |
| 2023-12-20 | 13.227.74.60 (ClassC) |
| 2025-05-13 | 18.161.6.66 (ClassC) |
| 2025-06-01 | 3.165.160.2 (ClassC) |
| 2025-07-12 | 18.161.6.8 (ClassC) |
| 2025-08-30 | 18.161.6.19 (ClassC) |
| 2025-09-02 | 18.161.6.95 (ClassC) |
| 2026-01-17 | 3.163.24.41 (ClassC) |
| 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 | 2025-09-02 | 104.18.6.183 |
| stage-course.stcusa.com | 2025-09-14 | 104.18.7.183 |
| test-course.stcusa.com | 2025-11-15 | 104.18.6.183 |
| dev-course.stcusa.com | 2025-11-12 | 104.18.6.183 |
| studentapi.stcusa.com | 2024-11-22 | 18.161.6.52 |
| dark.stcusa.com | 2025-10-27 | 104.18.7.183 |
| learn.stcusa.com | 2025-11-14 | 104.18.6.183 |
| stage-learn.stcusa.com | 2025-10-10 | 104.18.7.183 |
| test-learn.stcusa.com | 2025-09-23 | 104.18.6.183 |
| dev-learn.stcusa.com | 2025-09-19 | 104.18.6.183 |
| test-partner.stcusa.com | 2025-10-29 | 104.18.6.183 |
| dev-partner.stcusa.com | 2025-11-12 | 104.18.6.183 |
| api-ms.stcusa.com | 2024-06-16 | 104.18.20.199 |
| checkout.stcusa.com | 2025-12-12 | 104.18.6.183 |
| test-checkout.stcusa.com | 2025-11-12 | 104.18.7.183 |
| www.stcusa.com | 2025-12-13 | 104.18.6.183 |
| my.stcusa.com | 2023-12-20 | 13.227.74.60 |