Google索引中斷導致大量網頁從搜尋結果消失

如果你的網頁跟我一樣在9/30突然在Google SERP 消失，在 search console 把該網頁「要求建立索引」就可以解決。

網頁在9/30出現異常

以下為Google在twitter的解釋:

We are currently working to resolve two separate indexing issues that have impacted some URLs. One is with mobile-indexing. The other is with canonicalization, how we detect and handle duplicate content. In either case, pages might not be indexed....

If a previously indexed page has gone, it might be the mobile-indexing issue, where we’re failing to select any page at all to index. If the canonical issue is involved, URL Inspector may show the URL as a duplicate & the Google-selected canonical will be different from it….

There’s no action to take with these issues on the part of site owners. We apologize for the issues here and are working rapidly to resolve them. We’ll update this thread as each is corrected.

總之，就是講一些大家都知道的規範，然後對於出現此問題深表歉意，並正在迅速解決這些問題。

而大多數網頁的確也在這之後復原。

10月20日，Google再次回應，說它們已修復99%出問題的網頁。

要求建立索引

「要求建立索引」是在Google search console中一種提交網頁給Google的方式，當網頁新增、修改時，都可以用此功能來希望Google快一點建立索引或更新對網頁的理解。

而在2020年10月中旬開始，Google暫時停用了此項功能(2021年1月重新開啟)。