The site should have a clear structure and clear navigation, which can help users quickly find what they are looking for and at the same time can help search engines to quickly understand your site.

Baidu recommends a “Tree” like site structure which usually divided into the following three levels:

Baidu Site Navigation Tree

Also ideally you should have a flat architecture where possible as it allows the search engines to find your content in as few clicks possible. No more than 3 clicks to deepest level is recommended.

Flat Structure:

Baidu Flat Structure

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