| Date | Description |
|---|---|
| 2023-03-21 | update robots_txt_status www.tzainc.com: 0 => 404 |
| 2022-10-01 | update robots_txt_status tzainc.com: 200 => 404 |
| 2022-05-25 | update website_status OK => DomainNotFound |
| 2019-04-21 | update robots_txt_status www.tzainc.com: 200 => 0 |