| Date | IP Address |
| 2025-04-14 | 18.245.124.67 (ClassC) |
| 2025-05-05 | 3.162.163.73 (ClassC) |
| 2025-05-05 | 108.156.172.63 (ClassC) |
| 2025-05-05 | 18.65.3.123 (ClassC) |
| 2025-05-05 | 18.65.3.20 (ClassC) |
| 2025-09-25 | 52.85.61.108 (ClassC) |
| 2025-10-16 | 18.161.6.128 (ClassC) |
| 2025-11-03 | 18.161.6.15 (ClassC) |
| 2025-12-19 | 18.161.6.129 (ClassC) |
| 2026-01-17 | 18.161.6.41 (ClassC) |
| Date | Domain | IP |
| api.rsc.org | 2025-10-16 | 18.161.6.128 |
| xlink.rsc.org | 2025-09-11 | 3.163.24.8 |
| spectraschool.rsc.org | 2025-07-31 | 54.68.182.72 |
| developer.rsc.org | 2025-10-31 | 3.175.34.15 |
| jobs.rsc.org | 2021-03-29 | 13.226.15.30 |
| feeds.rsc.org | 2024-09-15 | 142.251.33.83 |
| magazines.rsc.org | 2025-10-16 | 52.223.11.33 |
| blogs.rsc.org | 2019-10-30 | 185.136.235.216 |
| submissions.rsc.org | 2025-11-01 | 18.169.174.180 |
| hc-content.rsc.org | 2024-12-25 | 157.185.156.194 |
| www.rsc.org | 2025-06-17 | 78.25.196.148 |