How it works
Indexability asks whether a search engine is allowed and technically able to include a page in its index. It depends on the response, indexing directives and canonical signals. A crawlable page can deliberately use noindex. Conversely, a URL can appear in search without its content being fetched if crawling is blocked and other sites link to it.
A realistic example
An English glossary draft may be available to reviewers but not ready for publication. Its German equivalent should not be indexed just because it has a title and language selector. Review the whole translation group; do not put the unfinished versions into the sitemap while excluding only the source-language draft.
What to check
Inspect the final response after redirects, then check meta robots, X-Robots-Tag and the canonical URL. Verify that these signals agree with the intended publication status. Confirm that Google can read the page, that the visible body is substantial and that language alternatives really refer to equivalent complete content.
Limits and next steps
A technically indexable page is not guaranteed a place in search. Search engines also choose canonical versions and assess content usefulness. Fix contradictions first, then investigate quality and discovery. Keep approval status separate from a successful HTML or schema validation result.