| Date | IP Address |
| 2014-09-16 | 54.241.240.225 (ClassC) |
| 2016-07-09 | 54.243.185.251 (ClassC) |
| 2017-09-22 | 52.213.211.109 (ClassC) |
| 2018-08-11 | 35.153.87.42 (ClassC) |
| 2019-06-02 | 35.168.41.214 (ClassC) |
| 2019-07-02 | 50.17.94.88 (ClassC) |
| 2019-07-05 | 52.4.142.59 (ClassC) |
| 2019-07-24 | 52.45.7.26 (ClassC) |
| 2019-07-30 | 34.237.101.58 (ClassC) |
| 2019-08-22 | 18.235.206.36 (ClassC) |
| 2019-10-06 | 34.239.215.123 (ClassC) |
| 2020-04-19 | 35.168.150.141 (ClassC) |
| 2026-01-17 | 35.155.180.218 (ClassC) |
| Date | Domain | IP |
| cdn-5.calculusproblems.org | 2025-03-23 | 172.67.130.175 |
| www.calculusproblems.org | 2014-09-16 | 54.243.185.251 |