GLOSSARY TERM
What is Noindex?
Definition
A meta robots directive telling search engines not to include a page in their index, even if they crawl it. Specified via <meta name="robots" content="noindex"> or the X-Robots-Tag HTTP header.
Why it Matters for AI Search
Use noindex for thank-you pages, internal search results, filtered category pages, and anything user-generated with infinite URL space. Accidentally leaving noindex on important pages is one of the most common SEO disasters — and one of the easiest to miss because the page renders normally.
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