404. That’s an error.
The requested URL /bookmarks/mark?op=edit&bkmk=https://www.venturii.net/blog/2018/04/02/already-april/ was not found on this server. That’s all we know.
/bookmarks/mark?op=edit&bkmk=https://www.venturii.net/blog/2018/04/02/already-april/