| Date | IP Address |
| 2023-08-25 | 104.108.87.202 (ClassC) |
| 2024-09-09 | 104.98.107.169 (ClassC) |
| 2025-08-05 | 23.56.88.18 (ClassC) |
| 2025-11-21 | 23.8.23.194 (ClassC) |
| 2026-02-09 | 104.98.215.194 (ClassC) |
| Date | Domain | IP |
| qa.us-cert.gov | 2023-08-25 | 104.108.87.202 |
| edit.qa.us-cert.gov | 2023-08-25 | 104.108.87.202 |
| malware.us-cert.gov | 2024-07-30 | 2.19.149.215 |
| www.malware.us-cert.gov | 2024-03-08 | 23.196.195.112 |
| search.us-cert.gov | 2024-11-25 | 54.86.75.48 |
| portal.us-cert.gov | 2024-10-01 | 52.235.253.124 |
| buildsecurityin.us-cert.gov | 2023-10-19 | 23.196.197.213 |
| www.buildsecurityin.us-cert.gov | 2024-08-31 | 23.37.217.177 |
| niccs.us-cert.gov | 2015-03-31 | 198.47.108.19 |
| staging.niccs.us-cert.gov | 2023-08-25 | 104.108.95.151 |
| edit.staging.niccs.us-cert.gov | 2023-08-25 | 104.108.87.202 |
| edit.niccs.us-cert.gov | 2023-08-25 | 23.196.196.228 |
| testint.niccs.us-cert.gov | 2023-08-25 | 104.108.95.151 |
| edit.testint.niccs.us-cert.gov | 2023-08-25 | 104.108.87.202 |
| preview.niccs.us-cert.gov | 2024-01-11 | 23.203.221.70 |
| edit-preview.niccs.us-cert.gov | 2023-08-25 | 23.196.196.228 |
| www.niccs.us-cert.gov | 2023-08-25 | 23.37.214.143 |
| nics.us-cert.gov | 2024-01-11 | 23.203.221.70 |
| www.nics.us-cert.gov | 2023-08-25 | 23.196.119.128 |
| forms.us-cert.gov | 2015-02-19 | 23.61.68.56 |
| edit.us-cert.gov | 2023-08-25 | 23.196.196.228 |
| ics-cert.us-cert.gov | 2015-05-20 | 104.67.79.44 |
| www.ics-cert.us-cert.gov | 2024-03-12 | 104.81.184.90 |
| test.us-cert.gov | 2023-08-25 | 104.108.95.151 |
| edit.test.us-cert.gov | 2023-08-25 | 104.108.87.202 |
| preview.us-cert.gov | 2024-01-06 | 23.196.197.213 |
| edit-preview.us-cert.gov | 2023-08-26 | 104.100.48.223 |
| www.us-cert.gov | 2014-04-08 | 23.194.135.57 |