Google Warns Noindex Can Block JavaScript From Running

Published

1 month ago

December 16, 2025

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Google updated its JavaScript SEO documentation to clarify that noindex tags may prevent rendering and JavaScript execution, blocking changes.

When Google encounters `noindex`, it may skip rendering and JavaScript execution.
JavaScript that tries to remove or change `noindex` may not run for Googlebot on that crawl.
If you want a page indexed, avoid putting `noindex` in the original page code.

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