| Property | Value |
| Name | CTK Software, Inc. |
| Organization | CTK Software, Inc. |
| alexb@cut-the-knot.com | |
| Address | 9 Fernwood Ct |
| Zip Code | 08816-3333 |
| City | East Brunswick |
| State | NJ |
| Country | US |
| Phone | +1.7326511020 |
| NameServer | ns-1639.awsdns-12.co.uk |
| Created | 2001-11-06 20:05:04 |
| Changed | 2014-10-09 18:15:08 |
| Expires | 2016-11-06 20:05:04 |
| Registrar | eNom, Inc. (R39-LROR |
| Date | IP Address |
| 2013-11-08 | 67.225.138.171 (ClassC) |
| 2014-07-15 | 54.241.240.225 (ClassC) |
| 2014-07-17 | 54.243.185.251 (ClassC) |
| 2014-07-26 | 54.243.247.173 (ClassC) |
| 2014-09-25 | 54.228.218.117 (ClassC) |
| 2015-10-08 | 54.235.146.190 (ClassC) |
| 2015-10-22 | 54.227.243.4 (ClassC) |
| 2017-02-26 | 54.83.28.185 (ClassC) |
| 2025-04-07 | 107.180.50.227 (ClassC) |
| Date | Domain | IP |
| cdn-5.cut-the-knot.org | 2014-11-12 | 54.230.4.88 |
| cdn-6.cut-the-knot.org | 2014-11-11 | 54.230.7.183 |
| cdn.cut-the-knot.org | 2014-09-04 | 54.230.4.88 |
| www.cut-the-knot.org | 2014-05-20 | 54.243.247.173 |