| Date | IP Address |
| 2021-01-11 | 99.84.214.76 (ClassC) |
| 2021-01-11 | 99.84.214.68 (ClassC) |
| 2023-05-05 | 99.84.208.72 (ClassC) |
| 2025-03-08 | 76.76.21.21 (ClassC) |
| 2026-02-09 | 123.213.179.79 (ClassC) |
| Date | Domain | IP |
| cdn.sell-up.co.kr | 2024-01-12 | 52.219.204.16 |
| app.sell-up.co.kr | 2024-07-18 | 99.84.66.58 |
| accounts.sell-up.co.kr | 2024-07-17 | 18.161.6.7 |
| ws.sell-up.co.kr | 2024-08-21 | 99.84.66.115 |