| Date | IP Address |
| 2020-11-18 | 54.192.66.34 (ClassC) |
| 2023-03-07 | 108.138.64.95 (ClassC) |
| 2024-08-08 | 3.163.24.100 (ClassC) |
| 2025-01-03 | 3.163.158.4 (ClassC) |
| 2025-01-06 | 3.163.24.52 (ClassC) |
| 2026-02-26 | 3.169.173.34 (ClassC) |
| Date | Domain | IP |
| app.fcseoul.com | 2024-11-13 | 3.163.24.24 |
| files.fcseoul.com | 2024-08-08 | 3.163.24.100 |
| www.fcseoul.com | 2023-11-01 | 3.34.109.21 |