How Search Engines Decide Which Pages to Index
https://thecrawljournal.cloudhinter.com/posts/how-search-engines-decide-which-pages-to-index
Search engines use crawlers to find new pages by following links. They evaluate content relevance, freshness, and site authority. Pages with clear structure, unique content, and proper metadata are more likely to be indexed. Spam or low-quality pages may be skipped entirely.