| Property | Value |
| NameServer | NS2.RACKSPACE.COM |
| Created | 2001-06-29 00:00:00 |
| Changed | 2014-08-09 00:00:00 |
| Expires | 2016-06-29 00:00:00 |
| Registrar | NETWORK SOLUTIONS, L |
| Date | IP Address |
| 2014-05-19 | 199.83.129.17 (ClassC) |
| 2014-12-14 | 199.83.134.177 (ClassC) |
| 2015-01-18 | 199.83.134.65 (ClassC) |
| 2016-06-03 | 199.83.131.65 (ClassC) |
| 2016-11-21 | 72.246.40.17 (ClassC) |
| 2016-12-16 | 23.215.104.26 (ClassC) |
| 2017-01-23 | 23.218.156.200 (ClassC) |
| 2017-02-13 | 204.2.193.138 (ClassC) |
| 2017-04-28 | 184.27.178.42 (ClassC) |
| 2017-05-20 | 23.7.245.50 (ClassC) |
| 2017-08-08 | 23.7.245.65 (ClassC) |
| 2017-11-24 | 104.17.125.180 (ClassC) |
| 2020-03-24 | 104.17.124.180 (ClassC) |
| 2020-05-02 | 104.17.123.180 (ClassC) |
| 2020-09-17 | 172.67.20.81 (ClassC) |
| 2021-02-12 | 104.22.12.239 (ClassC) |
| 2021-03-06 | 104.22.13.239 (ClassC) |
| Date | Domain | IP |
| blog.castlelearning.com | 2016-07-18 | 67.135.105.8 |
| internal.castlelearning.com | 2016-10-27 | 199.83.134.89 |
| cl.castlelearning.com | 2018-08-08 | 104.20.98.34 |
| info.castlelearning.com | 2020-03-24 | 104.17.125.180 |
| corp.castlelearning.com | 2014-05-19 | 199.83.129.17 |
| www.castlelearning.com | 2014-12-14 | 199.83.134.200 |