indexability
Also called: indexable, indexable page, index eligibility
Indexability is whether a page is eligible to be added to a search engine's index and shown in results. A page can be crawlable yet non-indexable when a noindex rule, a canonical pointing elsewhere, or thin content stops Google from storing it.
What makes a page indexable
Crawlability and indexability are two separate gates. Crawlability is whether Googlebot can reach a URL. Indexability is whether Google will store that page after reading it. A page has to clear both to appear in search.
Common reasons a crawled page stays out of the index:
- A
noindexrule, set as<meta name="robots" content="noindex">in the<head>or as anX-Robots-Tag: noindexHTTP header. Google drops the page from results even if other sites link to it. - A canonical tag pointing to a different URL, so Google indexes the canonical and skips the duplicate.
- Content Google judges too thin or too duplicative to be worth storing.
One trap is worth memorizing: noindex only works if the page is not blocked by robots.txt. If robots.txt blocks the URL, Googlebot never crawls it, never sees the noindex, and the page can still surface in results from external links. To de-index a page you leave it crawlable and let Google read the directive.
Indexing is never automatic. Google states plainly that “not every page that Google processes will be indexed.” You confirm a specific URL’s status in Search Console’s URL Inspection tool, which reports whether the page is on Google and, if not, the reason why.
How it affects your traffic
Indexability problems are silent revenue leaks: a page that is not indexed earns zero clicks no matter how strong the content or how many backlinks point at it. Stray noindex tags left over from a staging build, canonicals aimed at the wrong URL, and robots.txt blocks that hide de-index directives all quietly shrink how much of your site Google can rank. A Technical SEO audit maps every URL's index status, clears the blockers, and gets your money pages eligible to compete before you spend a euro on content or links.
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