Found that Bing deleted all pages under from the search results.

All pages under , my home server site are deleted from the search results of Bing and by its results, we cannot find my websites by DuckDuckGo using Bing’s search index.
Seeing this, I unpublished some entries.
Title: Bingで「一部の検索結果が削除されました」の対処方法は記事の削除です
Translation: “Some results have been removed” at Bing: Its Coping Method is Deletion of the Article.
I found that by searching my entry to expose a dolphin freak whom I refute. And at first, I thought that the search result deletion was a censorship against it. But it’s not certain how it is actually.

Addition at 15.47

Found that the search results of all are removed, too. So now it’s possible that another person’s problem influences, too.