Definition
Indexability is whether a page is eligible to go into a search engine's index at all: it can be fetched, it answers with a working status code, nothing tells the engine to leave it out, and it does not name another URL as the real version. It is an industry term rather than a Google one, so the checks below are assembled from Google's documentation of each part.
Example. A page carrying noindex can be crawled but is not indexable. A page Google crawled and chose to leave out is indexable but not indexed. Most indexing problems live in the gap between those two.
You can run all four checks on any URL in one go with the free Noindex Checker.
What makes a page indexable?
A page is indexable when it passes four checks: it can be fetched, it answers 200, it allows indexing, and it names itself as canonical. Each one is a separate place a page can be shut out, and each failure has its own status in the Search Console page indexing report.
Why does a noindex fail on a blocked page?
A noindex fails on a blocked page because the crawler only sees the rule by fetching the page. Google says that for noindex to work, the page must not be blocked by robots.txt and must be otherwise accessible to the crawler. Block the path and the rule meant to remove the page is never seen. The robots.txt entry covers the other half of that trap.
Noindex itself can be set two ways, as a <meta name="robots"> tag or as an X-Robots-Tag HTTP header. The header is the only option for a PDF or an image, and it is the one a page-source check misses.
Is an indexable page guaranteed to be indexed?
An indexable page is not guaranteed to be indexed. Google says not to expect every URL on a site to be indexed, and that not indexed is not necessarily bad. Its status "Crawled - currently not indexed" means exactly what it says: the page was fetched, cleared the checks above, and was left out.
Google attaches no reason to that status and says there is no need to resubmit the URL for crawling, so no tag on the page changes it. "Discovered - currently not indexed" is different again: Google knows the URL exists but has not crawled it yet.
How long does a fix take to show?
A fix can take months to show, depending on how important Google considers the page. Google says it may take months for Googlebot to revisit a page. The URL Inspection tool in Search Console lets you request a recrawl and see the HTML Googlebot actually received, which is the fastest way to confirm a fix landed.
Sources
- Google Search Central: Block Search indexing with noindex
- Search Console Help: Page indexing report
- Google Search Central: Introduction to robots.txt
Last checked against these sources on 19 October 2026.