Start by accepting what a sitemap does
This is the misconception underneath almost every version of this question. A sitemap is a list of URLs you would like considered. It is not a request to index, and it carries no obligation.
Google's wording: submitting a sitemap "is merely a hint: it doesn't guarantee that Google will download the sitemap or use the sitemap for crawling URLs on the site."
So a sitemap showing Success in Search Console while its pages are unindexed is not a contradiction. The file was read. What happens next is a separate set of decisions about each page.
The five causes, in order of how often they are the answer
Work through these in order. The first two are configuration mistakes and quick to check; the last is the hardest to hear and the most common on content-heavy sites.
| Cause | How to check | Fix |
|---|---|---|
| Blocked in robots.txt | Search Console reports blocked by robots.txt | Remove the Disallow. Note a blocked page can still appear in results without a description |
| noindex tag on the page | View source, look for a robots meta tag | Remove the tag, and remove the page from the sitemap if it should stay noindex |
| Not the canonical URL | Search Console reports an alternate page with a proper canonical tag | Put the canonical URL in the sitemap, not the variant |
| Nothing links to it | Search the site for internal links to that URL | Link to it from somewhere relevant. This is the most under-appreciated cause |
| Judged not worth indexing | Search Console reports crawled, currently not indexed, or discovered | Improve the page, or accept it. No technical fix exists |
The contradiction Google notices
Two of those causes are really the same mistake in different clothes: you are asking search engines to index a page that your own site treats as unimportant.
A page in your sitemap that nothing on your site links to is a case of this. So is a page in your sitemap that carries a noindex tag. In both cases your site is sending two opposite signals, and the sitemap is the weaker of the two.
This site had that problem at scale until recently, with over two hundred pages sitting in the sitemap and no internal links pointing at any of them. Adding hub pages and real internal linking mattered far more than the sitemap ever had.
So the useful question is not why Google is ignoring your sitemap. It is whether your own site behaves as though those pages matter.
Crawled, currently not indexed
This status deserves its own note because it is the one people find most frustrating, and because there is no trick for it.
It means Google fetched the page, looked at it, and decided not to index it. Not blocked, not broken, not misconfigured. Judged.
That usually means the page is thin, near-duplicate of something else, or does not add anything a searcher could not get elsewhere. Occasionally it means the site as a whole has not earned enough crawl attention for marginal pages to make the cut.
The honest options are to make the page substantially better, to merge it into a stronger page, or to accept it. Resubmitting the sitemap, adjusting priority values, or pinging URLs will not change the judgement.
Common questions
My sitemap says Success but pages are not indexed. Why?+
Success means the file was fetched and parsed, nothing more. Google describes a sitemap as a hint that does not guarantee crawling, and indexing is a separate per-page decision.
What does crawled, currently not indexed mean?+
Google fetched the page and decided not to index it. It is a judgement rather than an error, usually about thin or near-duplicate content. The fix is a materially better page, a merge, or acceptance.
Will resubmitting the sitemap help?+
No. If the file already parsed successfully, resubmitting changes nothing. The cause is with the pages or the site.
Can a page be indexed if robots.txt blocks it?+
Yes, awkwardly. Google has said a disallowed URL can still appear in results if other pages link to it, typically with no description because the content was never read. To keep a page out of search, allow crawling and use a noindex tag.
Does internal linking affect indexing?+
Substantially, and it is the most under-appreciated cause on this list. A page in your sitemap that nothing on your site links to is a page your own site is treating as unimportant, and that contradiction usually shows up as poor indexing.
Sources