Indexability

Indexability is the eligibility layer of SEO. A page can be discovered and crawled but still excluded from the index because of directives, canonicalization, duplication, quality, or technical errors.

Useful indexability checks include robots directives, canonical tags, response codes, rendered content, duplication, and internal links.

Crawlable is not always indexable

A search engine can request a page and still decide not to store it as a search result. The page might be blocked by noindex, canonicalized to another URL, too similar to existing content, or not useful enough to include.

Indexability work asks whether a page is technically eligible and whether it deserves to be in the index.

Checks to run

• The page returns a 200 status and is not blocked by robots directives.
• Meta robots and HTTP headers do not include accidental noindex.
• The canonical tag points to the page itself or to the intended preferred URL.
• Rendered content includes the primary page value, not only placeholders.
• Internal links and sitemap entries reinforce the page’s importance.
• Duplicate or near-duplicate URLs are consolidated.

What to prioritize

Fix indexability issues first on pages that should generate search demand, leads, local discovery, or authority.

Not every page needs to be indexed. Thank-you pages, internal search pages, filtered duplicates, and utility URLs often should stay out of search.