| Date | Description |
|---|---|
| 2025-01-24 | update robots_txt_status www.dtechengineeringservices.com: 200 => 404 |
| 2024-10-25 | update robots_txt_status www.dtechengineeringservices.com: 404 => 200 |
| 2023-06-07 | delete otherexecutives David Gabris |
| 2023-06-07 | delete person David Kristof |
| 2023-06-07 | delete person James D. Balaz |
| 2023-06-07 | delete person Mark D. Schultz |
| 2023-06-07 | update person_title David Gabris: FOUNDER; CEO; Director => FOUNDER; CEO |