| Date | IP Address |
| 2020-02-07 | 13.225.54.44 (ClassC) |
| 2024-07-09 | 108.156.224.73 (ClassC) |
| 2024-08-13 | 18.161.6.94 (ClassC) |
| 2025-03-16 | 108.138.94.27 (ClassC) |
| 2025-04-20 | 18.161.6.106 (ClassC) |
| 2025-08-25 | 18.245.199.14 (ClassC) |
| 2025-11-18 | 18.161.6.88 (ClassC) |
| 2026-01-10 | 18.161.6.108 (ClassC) |
| Date | Domain | IP |
| www.testing-formstack.com | 2025-03-16 | 18.161.6.108 |