| Date | IP Address |
| 2025-02-27 | 18.176.70.130 (ClassC) |
| 2025-05-11 | 57.181.10.16 (ClassC) |
| 2025-08-20 | 52.193.140.62 (ClassC) |
| 2025-09-07 | 54.199.195.220 (ClassC) |
| 2025-10-01 | 52.68.224.204 (ClassC) |
| 2026-02-11 | 18.178.82.139 (ClassC) |
| Date | Domain | IP |
| maeda.envi-sign.com | 2025-02-27 | 54.250.239.149 |
| kajima.envi-sign.com | 2025-02-27 | 54.250.239.149 |
| okumura.envi-sign.com | 2025-02-27 | 52.198.162.199 |
| static.envi-sign.com | 2023-11-16 | 52.219.172.68 |
| auth.envi-sign.com | 2025-02-26 | 3.115.65.166 |
| dev-taisei.envi-sign.com | 2025-02-27 | 18.176.70.130 |
| obayashi.envi-sign.com | 2025-02-27 | 54.250.239.149 |
| order.envi-sign.com | 2025-02-27 | 18.180.191.105 |
| customer.envi-sign.com | 2025-02-27 | 54.250.239.149 |
| reports.envi-sign.com | 2025-02-27 | 52.198.162.199 |
| order-dev.envi-sign.com | 2025-02-27 | 54.92.57.139 |