| Date | IP Address |
| 2018-11-16 | 52.84.143.152 (ClassC) |
| 2018-11-16 | 52.84.143.198 (ClassC) |
| 2018-11-16 | 52.84.143.57 (ClassC) |
| 2024-07-06 | 3.163.158.32 (ClassC) |
| 2024-11-26 | 99.84.66.67 (ClassC) |
| 2025-01-18 | 3.163.158.109 (ClassC) |
| 2025-06-10 | 18.161.6.18 (ClassC) |
| 2025-06-14 | 18.161.6.111 (ClassC) |
| 2025-09-14 | 18.161.6.107 (ClassC) |
| 2026-01-24 | 18.161.6.57 (ClassC) |
| Date | Domain | IP |
| dcapi.rdc-staging.library.northwestern.edu | 2024-05-27 | 107.23.49.201 |
| iiif.stack.rdc-staging.library.northwestern.edu | 2024-07-06 | 3.163.158.32 |
| arch.stack.rdc-staging.library.northwestern.edu | 2024-06-16 | 54.90.241.70 |