| Date | IP Address |
| 2019-08-15 | 104.91.167.82 (ClassC) |
| 2019-11-10 | 23.42.158.202 (ClassC) |
| 2019-11-30 | 104.114.79.16 (ClassC) |
| 2020-01-02 | 23.35.71.113 (ClassC) |
| 2020-01-02 | 23.35.71.33 (ClassC) |
| 2020-01-28 | 23.43.164.66 (ClassC) |
| 2020-08-15 | 23.197.195.90 (ClassC) |
| 2020-12-17 | 23.198.6.190 (ClassC) |
| 2025-04-10 | 162.159.128.45 (ClassC) |
| 2025-12-09 | 162.159.138.44 (ClassC) |
| Date | Domain | IP |
| admissions-staging.hackreactor.com | 2024-08-27 | 3.220.57.224 |
| alumni.hackreactor.com | 2025-04-10 | 162.159.128.45 |
| prep.hackreactor.com | 2025-04-17 | 104.17.83.54 |
| admissions.hackreactor.com | 2024-09-03 | 3.232.242.170 |