| Date | IP Address |
| 2018-02-07 | 54.221.212.171 (ClassC) |
| 2018-02-21 | 54.225.179.161 (ClassC) |
| 2018-03-23 | 54.243.164.125 (ClassC) |
| 2018-04-29 | 54.197.226.226 (ClassC) |
| 2018-04-29 | 54.225.150.40 (ClassC) |
| 2018-04-29 | 50.19.93.33 (ClassC) |
| 2018-05-01 | 23.23.171.5 (ClassC) |
| 2018-05-01 | 23.23.215.144 (ClassC) |
| 2018-05-01 | 174.129.193.172 (ClassC) |
| 2018-05-01 | 184.73.200.185 (ClassC) |
| 2018-05-01 | 23.21.174.201 (ClassC) |
| 2018-05-01 | 54.225.185.38 (ClassC) |
| 2019-09-17 | 34.230.145.192 (ClassC) |
| 2020-03-20 | 52.4.177.151 (ClassC) |
| 2021-07-22 | 52.44.51.219 (ClassC) |
| 2021-07-22 | 3.212.219.217 (ClassC) |
| 2021-07-25 | 50.19.6.110 (ClassC) |
| 2021-07-26 | 3.210.213.176 (ClassC) |
| 2021-08-04 | 3.212.203.64 (ClassC) |
| 2021-08-09 | 52.44.75.14 (ClassC) |
| 2025-07-25 | 44.207.183.110 (ClassC) |
| 2025-10-01 | 52.87.10.196 (ClassC) |
| 2026-01-06 | 44.206.147.179 (ClassC) |
| Date | Domain | IP |
| paypal-orig.invoicesimple.com | 2021-07-30 | 107.23.196.66 |
| paypal.staging.invoicesimple.com | 2024-05-27 | 52.72.121.41 |
| app.staging.invoicesimple.com | 2025-09-24 | 18.204.63.82 |
| paypal.invoicesimple.com | 2024-12-25 | 3.165.160.115 |
| cdn.invoicesimple.com | 2024-05-07 | 18.161.6.102 |
| app.invoicesimple.com | 2025-07-25 | 44.207.183.110 |
| www.careers.invoicesimple.com | 2025-09-01 | 34.149.195.199 |
| checkout.invoicesimple.com | 2024-12-23 | 52.87.10.196 |
| www.invoicesimple.com | 2025-09-01 | 172.67.134.138 |