| Date | Description |
|---|---|
| 2022-02-17 | update founded_year 1992 => 1991 |
| 2019-08-19 | update robots_txt_status www.techcongp.com: 404 => 200 |
| 2017-03-05 | delete source_ip 66.96.149.16 |
| 2017-03-05 | insert source_ip 66.96.149.17 |
| 2016-03-23 | delete source_ip 66.96.133.15 |
| 2016-03-23 | insert source_ip 66.96.149.16 |