cases where you should set the noindex tag

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It is set for pages that are necessary for the convenience of the site, but do not need to be indexed or are better off not being indexed. We will
pick up and explain six specific cases.

1. HTML Sitemap Page
The HTML sitemap page is for users to find the page they are looking for, and it guides them to what pages are on the site. It does not need to be displayed in search results, so it does not need to be indexed. Make sure to set the noindex tag.

Sitemaps are explained in detail in the following article:
What is a Sitemap? How to create one, its benefits, and 4 useful tools
2. Duplicate or similar content
If there is duplicate content on the same site, it may cause search engine rankings to be greece phone number resource split, so set the noindex tag. The same goes for similar content.

For example, in the case of an EC site, the text of the product introduction may be the same, but products of different colors may be introduced on different pages. In this case, we recommend setting the noindex tag because there is a risk that the content may be judged as similar. Another way to normalize duplicate content is to use canonical.