| Date | IP Address |
| 2020-08-05 | 52.216.28.67 (ClassC) |
| 2021-01-11 | 52.217.96.19 (ClassC) |
| 2021-03-10 | 52.217.110.91 (ClassC) |
| 2024-09-03 | 52.216.59.13 (ClassC) |
| 2025-03-28 | 54.231.136.101 (ClassC) |
| 2025-04-14 | 52.216.179.98 (ClassC) |
| 2025-07-22 | 54.231.199.173 (ClassC) |
| 2025-07-29 | 52.217.136.101 (ClassC) |
| 2025-11-18 | 16.15.201.1 (ClassC) |
| Date | Domain | IP |
| well-formed.eigenfactor.org | 2025-07-31 | 52.6.43.8 |
| babel.eigenfactor.org | 2024-09-03 | 52.216.59.13 |