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How do AI search engines decide which sources to cite?

AI answer engines favor pages that state facts clearly, back them with specifics, match the question closely, and come from sources they judge trustworthy. They pull passages, not whole pages, so dense, well-structured sections with concrete information get cited more than vague, padded ones.

Notably, AI engines weight passage-level factual density heavily and raw domain authority less than Google does. That means a smaller site with a genuinely well-researched, specific page can get cited even when it wouldn't outrank big sites in traditional search.

The practical takeaway: write pages that answer a question directly, include real numbers and named specifics, structure them with clear headings, and keep them accurate. That's what makes a passage easy and safe for an AI to quote.

Updated July 2026

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