| 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 |
| 2021-01-20 | 23.63.73.144 (ClassC) |
| 2021-05-17 | 92.123.189.57 (ClassC) |
| 2021-06-26 | 95.101.22.186 (ClassC) |
| 2021-09-20 | 104.93.21.80 (ClassC) |
| 2022-03-13 | 104.96.200.248 (ClassC) |
| 2022-04-06 | 2.17.196.137 (ClassC) |
| 2022-06-07 | 23.48.210.145 (ClassC) |
| 2023-04-11 | 2.19.195.232 (ClassC) |
| 2023-10-05 | 23.202.90.89 (ClassC) |
| 2023-11-23 | 23.194.116.7 (ClassC) |
| 2024-01-18 | 23.198.6.176 (ClassC) |
| 2024-08-17 | 104.96.163.134 (ClassC) |
| 2025-04-14 | 23.202.47.9 (ClassC) |
| 2025-07-11 | 23.41.4.74 (ClassC) |
| 2025-09-21 | 23.41.4.88 (ClassC) |
| 2025-12-10 | 23.41.4.73 (ClassC) |
| 2026-01-05 | 184.30.150.11 (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 | 2025-07-31 | 23.41.4.88 |
| reviews.thegreatcourses.com | 2014-05-12 | 165.254.94.162 |
| www.thegreatcourses.com | 2023-08-25 | 96.7.156.246 |