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Measurement · Technical SEO

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Definition

Index coverage is the proportion of a website’s pages that have been successfully crawled and added to a search engine’s index — monitored via Google Search Console. It distinguishes between indexed, excluded, error, and warning states for each page. Index coverage is the audit metric that confirms which content is actually in Google’s index — and by extension, available for AI Overview citation. Pages in excluded or error states are not indexed and cannot be cited. Monitoring index coverage identifies systematic crawl issues — pages blocked by robots.txt, pages with noindex tags, pages with canonicalization errors — that prevent content from being available to AI systems.

Indexability

XML sitemap

Google Search Console

Crawl budget

Robots.txt

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