| Date | Description |
|---|---|
| 2019-07-20 | update robots_txt_status operant-tech.com: 404 => 200 |
| 2019-07-20 | update robots_txt_status www.operant-tech.com: 404 => 200 |
| 2016-04-01 | delete source_ip 66.96.131.107 |
| 2016-04-01 | insert source_ip 66.96.149.32 |
| 2013-05-18 | update website_status Disallowed => OK |
| 2013-04-27 | update website_status OK => Disallowed |