Starting from the discussion of blank category pages in e-commerce, we sort out the differences between noindex and soft 404, and how changes in content, internal links, and products can serve as signals for re-examination.
Saves a practical note on using the Search Console URL inspection tool to confirm whether JavaScript content is rendered, and links back to the basic article on search engine crawling and indexing.
Starting from the case of "searched but not yet indexed", we would like to remind you that indexing problems do not necessarily only occur in a single URL, but may also be related to the quality and structure of the entire website.