| Date | IP Address |
| 2019-09-07 | 52.6.9.29 (ClassC) |
| 2020-10-08 | 52.207.22.40 (ClassC) |
| 2020-10-21 | 52.7.26.47 (ClassC) |
| 2020-12-20 | 18.214.179.189 (ClassC) |
| 2021-12-15 | 67.202.25.0 (ClassC) |
| 2022-02-13 | 18.206.53.224 (ClassC) |
| 2024-06-09 | 35.172.163.12 (ClassC) |
| 2024-08-11 | 54.156.154.87 (ClassC) |
| 2025-02-07 | 52.4.188.142 (ClassC) |
| 2025-05-11 | 23.21.33.200 (ClassC) |
| 2025-06-25 | 52.45.47.242 (ClassC) |
| 2025-07-02 | 3.208.195.159 (ClassC) |
| 2025-08-12 | 18.211.183.14 (ClassC) |
| 2025-09-01 | 52.2.251.171 (ClassC) |
| 2025-09-23 | 54.85.12.214 (ClassC) |
| 2025-12-14 | 100.25.145.89 (ClassC) |
| 2025-12-26 | 98.94.229.252 (ClassC) |
| 2026-02-18 | 54.197.125.254 (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 | 2026-02-03 | 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 |