| Date | IP Address |
| 2015-10-07 | 54.231.161.107 (ClassC) |
| 2025-07-01 | 104.18.18.102 (ClassC) |
| 2025-07-16 | 104.18.19.102 (ClassC) |
| 2026-01-24 | 64.29.17.1 (ClassC) |
| 2026-02-26 | 64.29.17.65 (ClassC) |
| Date | Domain | IP |
| api-staging.cron.com | 2026-01-19 | 104.18.19.102 |
| api.cron.com | 2024-12-21 | 104.18.18.102 |
| calendar.cron.com | 2024-09-09 | 104.18.19.102 |
| www.cron.com | 2025-07-01 | 104.18.18.102 |