| Property | Value |
| privacy@1and1.com | |
| NameServer | NS2.DNSIMPLE.COM |
| Created | 2009-11-07 00:00:00 |
| Changed | 2016-02-10 00:00:00 |
| Expires | 2016-11-07 00:00:00 |
| Registrar | 1&1 INTERNET SE |
| Date | IP Address |
| 2020-06-02 | 13.227.47.129 (ClassC) |
| 2020-06-02 | 13.227.47.58 (ClassC) |
| 2020-06-02 | 13.227.47.89 (ClassC) |
| 2022-03-22 | 65.8.56.66 (ClassC) |
| 2024-02-21 | 18.161.6.58 (ClassC) |
| 2024-06-23 | 18.161.6.120 (ClassC) |
| 2024-09-18 | 18.161.6.34 (ClassC) |
| 2025-03-09 | 18.238.238.10 (ClassC) |
| 2025-04-30 | 18.161.6.129 (ClassC) |
| 2025-06-19 | 18.238.238.12 (ClassC) |
| 2025-10-13 | 3.169.173.32 (ClassC) |
| 2026-01-24 | 3.169.173.21 (ClassC) |
| Date | Domain | IP |
| cdn.commoncurriculum.com | 2024-09-15 | 99.84.66.109 |
| v4-cdn.commoncurriculum.com | 2024-02-19 | 18.161.6.114 |
| cloudapp.commoncurriculum.com | 2025-07-04 | 54.84.60.27 |
| cc-frontend-assets.commoncurriculum.com | 2024-02-21 | 18.161.6.58 |
| www.commoncurriculum.com | 2015-02-28 | 54.225.206.186 |