What is a Noindex Tag?
noindex タグは、検索エンジンにサイトや Web ページをインデックスしないように指示するメタ タグです。
Indexing is the process of saving a site to a database so that it can be displayed in search results. However, not all pages should be indexed and displayed in search results.
For example, site owners usually want to prevent search engines from indexing login and checkout pages. To do this, they add the noindex tag to the webpage.
With that said, you can set a page to noindex by adding the below code to the HTML head element of the webpage.
<meta name="robots" content="noindex">