Indexation is the process by which search engines add web pages to their searchable database (index). A page must be crawled, rendered, and evaluated before it can be indexed. Only indexed pages can appear in search results.
Why Indexation matters for SEO
If a page isn't indexed, it cannot rank for any keyword. Common indexation problems include noindex tags, canonical issues, crawl blocks in robots.txt, and low content quality. Google may also choose not to index pages it considers low-value or duplicate.
Pro tip on Indexation
Check indexation status in Google Search Console (URL Inspection tool). Ensure pages have no noindex tags, correct canonical tags, and are not blocked by robots.txt. Submit your XML sitemap to GSC and Bing. Improve thin pages that Google declines to index.
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