| Date | IP Address |
| 2015-03-07 | 72.22.205.14 (ClassC) |
| 2016-03-15 | 109.237.245.87 (ClassC) |
| 2016-09-05 | 5.39.7.132 (ClassC) |
| 2023-08-26 | 5.39.7.134 (ClassC) |
| 2025-08-12 | 15.188.72.235 (ClassC) |
| 2026-01-23 | 52.47.97.161 (ClassC) |
| Date | Domain | IP |
| api.yousign.com | 2024-04-18 | 5.39.7.134 |
| legal.yousign.com | 2025-12-23 | 5.39.7.130 |
| email.yousign.com | 2025-12-23 | 5.39.7.130 |
| app.yousign.com | 2025-06-30 | 145.239.192.37 |
| webapp.yousign.com | 2025-07-10 | 5.39.7.130 |
| autodiscover.yousign.com | 2025-12-20 | 5.39.7.130 |
| dev.yousign.com | 2024-06-09 | 35.172.163.12 |
| www.yousign.com | 2014-05-13 | 184.168.221.96 |