May 07, 2013 - Jan 09, 2014
| Name | First Seen |
|---|
| Name | First Seen | Last Seen |
|---|---|---|
| ns1.linguizta.com | Dec 06, 2013 | Jan 09, 2014 |
| ns2.linguizta.com | Dec 06, 2013 | Jan 09, 2014 |
| ns2.researchemarket.com | May 07, 2013 | Dec 17, 2013 |
| ns1.researchemarket.com | May 07, 2013 | Dec 17, 2013 |