| Property | Value |
| NameServer | UDNS2.ULTRADNS.NET |
| Created | 1999-01-27 00:00:00 |
| Changed | 2014-11-28 00:00:00 |
| Expires | 2018-01-27 00:00:00 |
| Registrar | NETWORK SOLUTIONS, L |
| Date | IP Address |
| 2021-02-21 | 92.123.189.57 (ClassC) |
| 2021-08-29 | 23.34.240.170 (ClassC) |
| 2022-12-05 | 23.59.250.16 (ClassC) |
| 2024-01-05 | 23.48.104.111 (ClassC) |
| 2025-03-07 | 23.41.4.73 (ClassC) |
| 2025-07-31 | 23.41.4.88 (ClassC) |
| Date | Domain | IP |
| lib.thegreatcourses.com | 2024-08-16 | 23.54.19.106 |
| store.thegreatcourses.com | 2024-08-17 | 104.96.163.134 |
| m2api.thegreatcourses.com | 2025-03-07 | 23.41.4.73 |
| reviews.thegreatcourses.com | 2014-05-12 | 165.254.94.162 |
| www.thegreatcourses.com | 2023-08-25 | 96.7.156.246 |