| Date | IP Address |
| 2024-06-18 | 3.234.12.133 (ClassC) |
| 2024-10-24 | 3.217.41.222 (ClassC) |
| 2024-10-29 | 100.24.77.69 (ClassC) |
| 2024-11-25 | 34.239.17.249 (ClassC) |
| 2024-12-03 | 52.204.37.97 (ClassC) |
| 2025-01-22 | 52.73.33.242 (ClassC) |
| 2025-04-27 | 44.217.30.228 (ClassC) |
| 2025-05-04 | 52.206.81.140 (ClassC) |
| 2025-05-13 | 44.209.69.104 (ClassC) |
| 2025-08-08 | 52.23.78.243 (ClassC) |
| 2026-01-28 | 44.198.31.9 (ClassC) |
| Date | Domain | IP |
| login-beta.serff.com | 2024-06-03 | 44.218.53.22 |
| train.serff.com | 2024-12-26 | 3.214.39.54 |
| login.serff.com | 2025-03-07 | 52.200.68.64 |
| services.serff.com | 2024-06-18 | 50.19.215.39 |
| filingaccess.serff.com | 2025-10-13 | 54.161.121.123 |
| www.serff.com | 2024-06-18 | 3.234.12.133 |