| Date | Description |
|---|---|
| 2019-06-22 | update robots_txt_status www.heatexchangersmanufacturers.net: 404 => 200 |
| 2019-01-17 | delete source_ip 115.112.176.58 |
| 2019-01-17 | insert source_ip 192.227.108.55 |
| 2015-01-14 | update robots_txt_status www.heatexchangersmanufacturers.net: 0 => 404 |