| Date | Description |
|---|---|
| 2023-10-14 | update robots_txt_status www.matsu-kou.jp: 200 => 404 |
| 2021-06-10 | delete index_pages_linkeddomain koken-ltd.co.jp |
| 2021-06-10 | insert alias Matsukou,Inc. |
| 2021-06-10 | insert index_pages_linkeddomain matsu-kou.id |
| 2021-06-10 | insert index_pages_linkeddomain matsukou-usa.com |
| 2021-02-20 | insert fax 052-384-1732 |
| 2021-02-20 | insert phone 052-384-1731 |