| Date | IP Address |
| 2024-05-13 | 52.28.160.127 (ClassC) |
| 2024-09-22 | 3.65.52.39 (ClassC) |
| 2024-12-16 | 35.156.44.15 (ClassC) |
| 2024-12-26 | 3.74.98.195 (ClassC) |
| 2025-01-28 | 18.194.72.14 (ClassC) |
| 2025-02-22 | 52.57.59.218 (ClassC) |
| 2025-05-12 | 18.193.246.212 (ClassC) |
| 2025-07-07 | 3.125.212.70 (ClassC) |
| 2025-07-12 | 35.157.29.215 (ClassC) |
| 2025-07-31 | 18.157.62.27 (ClassC) |
| Date | Domain | IP |
| app.c1st.com | 2024-10-05 | 18.161.6.70 |
| cloudprint.c1st.com | 2024-05-13 | 52.28.160.127 |
| www.c1st.com | 2025-05-21 | 134.209.199.85 |