The answer
Yes. Crawling and indexing are separate stages. Access, content processing, duplication, quality decisions, and other factors can affect whether a page is indexed.
How do search engines crawl, index, and retrieve information?
Can a crawled page fail to appear in the search index?
More FAQs in How do search engines crawl, index, and retrieve information?
No. It generally retrieves from an index built through earlier crawling and processing. Individual products may add other retrieval or freshness mechanisms when needed.
No. Ranking estimates usefulness and relevance using many signals. A reader still needs to assess the publisher, evidence, date, and whether the page supports the claim.
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