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Glossary Definition

noindex

/ˈnoʊ.ɪn.dɛks/ noun

An HTML meta tag or HTTP header directive telling search engines not to include a specific page in their index. Pages with noindex cannot rank in search results or be cited by AI search systems. Common legitimate uses include admin pages, duplicate content, and thin utility pages. Accidentally applied noindex tags are a frequent cause of indexing failures for SaaS blogs.

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