| Date | IP Address |
| 2020-02-23 | 3.213.94.123 (ClassC) |
| 2021-02-11 | 3.209.201.164 (ClassC) |
| 2021-08-07 | 3.224.229.27 (ClassC) |
| 2025-10-29 | 104.16.241.118 (ClassC) |
| 2025-12-18 | 104.16.242.118 (ClassC) |
| Date | Domain | IP |
| api.omnisend.com | 2023-08-16 | 104.18.15.46 |
| app.omnisend.com | 2023-08-16 | 104.18.25.231 |
| api-docs.omnisend.com | 2025-10-29 | 104.16.241.118 |
| www.omnisend.com | 2023-08-04 | 104.18.29.25 |