| Date | IP Address |
| 2017-11-03 | 54.192.2.132 (ClassC) |
| 2021-01-07 | 13.225.25.7 (ClassC) |
| 2021-01-07 | 13.225.31.25 (ClassC) |
| 2021-08-22 | 13.224.222.12 (ClassC) |
| 2024-07-30 | 204.246.191.40 (ClassC) |
| 2024-11-13 | 18.172.170.15 (ClassC) |
| 2025-05-18 | 18.172.170.52 (ClassC) |
| 2025-06-24 | 204.246.191.10 (ClassC) |
| 2025-08-01 | 204.246.191.26 (ClassC) |
| Date | Domain | IP |
| codecamp.crystal-lang.org | 2023-12-03 | 204.246.191.54 |
| dist.crystal-lang.org | 2024-07-30 | 204.246.191.40 |
| www.crystal-lang.org | 2023-11-01 | 99.84.66.129 |