| Date | IP Address |
| 2016-02-11 | 54.241.152.121 (ClassC) |
| 2016-12-11 | 52.9.70.86 (ClassC) |
| 2018-06-24 | 54.183.198.182 (ClassC) |
| 2018-08-02 | 13.56.85.73 (ClassC) |
| 2019-01-03 | 54.177.140.193 (ClassC) |
| 2019-12-19 | 52.8.233.212 (ClassC) |
| 2020-03-03 | 13.57.144.146 (ClassC) |
| 2020-06-09 | 52.8.20.216 (ClassC) |
| 2020-07-05 | 52.9.171.38 (ClassC) |
| 2020-08-01 | 52.53.122.7 (ClassC) |
| 2020-08-19 | 52.9.76.52 (ClassC) |
| 2020-10-14 | 52.9.4.99 (ClassC) |
| 2020-12-07 | 52.8.189.84 (ClassC) |
| 2020-12-17 | 52.52.153.14 (ClassC) |
| 2021-01-31 | 52.9.33.125 (ClassC) |
| 2021-02-06 | 52.52.35.20 (ClassC) |
| 2021-02-09 | 52.9.92.212 (ClassC) |
| 2025-12-14 | 172.64.146.13 (ClassC) |
| 2026-01-23 | 104.18.41.243 (ClassC) |
| Date | Domain | IP |
| metric.sciencemag.org | 2024-11-10 | 63.140.37.244 |
| search.sciencemag.org | 2026-01-04 | 52.8.62.150 |
| api.sciencemag.org | 2024-07-31 | 54.153.62.121 |
| metrics.sciencemag.org | 2024-07-27 | 63.140.36.51 |
| subscriptions.sciencemag.org | 2019-10-26 | 13.224.29.38 |
| cts.sciencemag.org | 2024-04-05 | 54.81.105.64 |
| assets.sciencemag.org | 2021-07-29 | 99.84.64.66 |