| Date | Description |
|---|---|
| 2025-03-05 | update website_status IndexPageFetchError => OK |
| 2024-09-28 | update website_status OK => IndexPageFetchError |
| 2019-11-10 | update robots_txt_status www.avalon-inc.jp: 404 => 200 |
| 2016-03-13 | update website_status OK => DomainNotFound |