Index Coverage.
Learn what Index Coverage means in modern search and SEO.
The Google Search Console report showing which pages on a site are indexed by Google and which are excluded—with reasons for exclusion.
The Index Coverage report in Google Search Console categorises every URL Google has encountered on a site into four statuses: Valid (indexed), Valid with Warning (indexed but with potential issues), Excluded (not indexed, for various reasons), and Error (Google tried to index but encountered a problem preventing indexing).
Common Exclusion Reasons
Key exclusion reasons include: Crawled—currently not indexed (Google discovered but chose not to index), Noindex (the page carries a noindex directive), Canonical—alternate selected (Google chose a different URL as the canonical), Page with redirect (the URL redirects to another), and Not found (404 error). Each reason requires a different investigation and remediation approach.
Using Index Coverage for Auditing
Comparing the total indexed URL count against the expected number of indexable pages reveals over-indexing (tag pages, faceted navigation variants, or parameters consuming crawl budget) or under-indexing (important pages inadvertently excluded by misconfigured robots.txt, noindex tags, or canonicals). Index Coverage is the starting point for any technical SEO audit.
Articles about Index Coverage
Read more on the Aergos blog.
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The Most Common SEO Mistakes We See on New Client Sites
After running dozens of site audits, the same problems keep showing up. Missing title tags, duplicate content, zero internal linking — these common SEO mistakes are costing sites real rankings. Here's what we see most, and how to fix it.
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