| Date | IP Address |
| 2021-07-22 | 13.225.66.55 (ClassC) |
| 2021-07-22 | 13.225.66.76 (ClassC) |
| 2024-09-03 | 204.246.191.31 (ClassC) |
| 2024-12-29 | 204.246.191.28 (ClassC) |
| 2025-07-20 | 3.163.158.110 (ClassC) |
| 2025-08-11 | 204.246.191.66 (ClassC) |
| Date | Domain | IP |
| beta.iop.org | 2025-04-17 | 172.67.132.83 |
| cdn.images.poc.cld.iop.org | 2025-01-20 | 204.246.191.64 |
| prod.iop.org | 2025-07-21 | 172.67.132.83 |
| iopscience.iop.org | 2024-08-04 | 141.226.253.39 |
| new.iopscience.iop.org | 2025-05-02 | 99.84.66.105 |
| myiopscience.iop.org | 2024-07-19 | 18.161.6.103 |
| dev.myiopscience.iop.org | 2024-02-17 | 18.161.6.76 |
| blog.iop.org | 2024-01-13 | 52.92.17.228 |
| staging.seedash.iop.org | 2024-09-03 | 204.246.191.31 |
| spark.iop.org | 2023-07-19 | 172.67.26.94 |
| test.securelogin.iop.org | 2024-04-08 | 52.17.198.23 |
| s1notification.iop.org | 2025-02-07 | 204.246.191.44 |
| membership.iop.org | 2025-03-07 | 172.67.132.83 |
| biologicalphysics.iop.org | 2025-03-20 | 3.163.24.43 |
| cdn.images.iop.org | 2024-08-27 | 99.84.66.122 |
| stacks.iop.org | 2025-03-07 | 18.238.217.41 |
| comms.iop.org | 2024-06-24 | 3.163.24.103 |
| applications.iop.org | 2025-04-15 | 104.21.4.179 |