Noindex: How to Keep a Page Out of Google's Index in 2026

Noindex is an instruction that tells search engines not to include a page in their index, and therefore not to display it in search results. It is set either in the HTML of the page, with the tag <meta name="robots" content="noindex"> in the head, or in the HTTP response, with the header X-Robots-Tag: noindex, which also works for PDFs and other non-HTML files. Google, Bing and most other engines respect it.

Noindex is a precise tool: it removes a URL from the results without making it inaccessible to users. A thank-you page, an internal search result page or a login page can stay online and useful while being invisible in Google. Used by mistake, the same tag can make a whole site disappear from search within days, which is why it deserves careful handling.

How does noindex work?

A search engine must crawl a page to read its noindex directive. When Googlebot fetches the URL and finds the tag or header, it drops the page from the index, or never adds it. On the next crawls, the page stays excluded as long as the directive is present. In Google Search Console, these URLs appear in the page indexing report under "Excluded by 'noindex' tag".

Because the engine needs to see the directive, noindex only works on pages that crawlers are allowed to fetch. If the URL is blocked in robots.txt, Google cannot read the tag, and the URL may even remain in the index without a description if other sites link to it. Google also stopped supporting noindex lines inside robots.txt in 2019: the directive must live in the page or in the header.

Noindex vs robots.txt vs canonical

The three tools answer different questions. Robots.txt controls crawling: it asks bots not to fetch some URLs, which saves crawl budget but does not guarantee deindexing. Noindex controls indexing: the page can be crawled but will not be shown. The canonical tag handles duplicates: it tells Google which version of similar pages to index, and passes signals to it, without removing the others from discovery.

A simple rule: to consolidate duplicates, use canonical; to keep a useful but non-searchable page out of results, use noindex; to stop bots from wasting time on endless URLs such as some filters, use robots.txt, knowing that those URLs will not be removed from the index by it.

When should you use noindex?

Typical candidates are pages that serve users but have no value as a search result: order confirmation and thank-you pages, internal search results, account and cart pages, printable versions, tag archives with a handful of posts, and staging or test environments that must never appear. Thin pages you plan to improve can also be noindexed temporarily, although improving or merging them is usually better, as explained in our page on thin content.

Noindex is not the right tool for confidential content. The page remains publicly accessible to anyone with the URL. Real protection requires authentication or a password.

How to add noindex correctly

In a CMS, use the built-in option: most SEO plugins and site builders offer a "hide from search engines" switch per page. In custom code, add the robots meta tag in the head, or configure the server to send the X-Robots-Tag header for a folder or file type. You can combine values, for example "noindex, follow", which keeps the links of the page crawlable.

Then check the result: inspect the URL in Search Console, confirm that the tag is in the rendered HTML, and make sure the page is not blocked in robots.txt. To remove a page quickly, the Removals tool hides it for about six months while the noindex takes effect. Sorank's free indexability checker shows whether a URL carries a noindex directive.

Common noindex mistakes

The most damaging mistake is leaving the "discourage search engines" option active after a site launch or a migration: the staging setting goes live and the whole site is deindexed. The second is combining noindex with a robots.txt block, which prevents Google from seeing the tag. The third is placing noindex on pages that also carry a canonical to another URL, which sends contradictory signals. Finally, noindexing paginated categories or important filters can cut crawlers off from the products they list.

Why noindex matters for SEO and GEO

For SEO, noindex keeps the index clean: fewer low-value URLs means search engines focus on the pages that deserve to rank. For GEO, the effect is direct. AI assistants such as ChatGPT search or Perplexity rely on web indexes, including Bing's, to find sources. A page excluded by noindex is generally absent from those indexes and cannot be cited. Checking that your key pages are indexable is a prerequisite for any visibility in the AIs.

Conclusion

Noindex tells search engines not to show a page in their results. It works through a robots meta tag or an X-Robots-Tag header, requires the page to be crawlable, and suits pages that are useful to visitors but useless in search. Used with care, it keeps the index focused; left on by mistake, it can erase a site from Google.

To go further, read our pages on indexing and robots.txt. Reference sources: Google on blocking indexing with noindex and Google's robots meta tag specifications.