| Date | Description |
|---|---|
| 2015-05-16 | update robots_txt_status www.shupenkoengineering.com: 404 => 200 |
| 2013-07-09 | update website_status DNSError => OK |
| 2013-05-25 | update website_status FlippedRobotsTxt => DNSError |
| 2013-05-22 | update website_status OK => FlippedRobotsTxt |