| Date | Description |
|---|---|
| 2018-04-15 | update description |
| 2017-07-27 | delete source_ip 110.45.140.109 |
| 2017-07-27 | insert source_ip 211.43.203.39 |
| 2017-07-27 | update robots_txt_status www.sym.co.kr: 404 => 0 |
| 2016-01-22 | delete source_ip 14.50.221.251 |
| 2016-01-22 | insert source_ip 110.45.140.109 |