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What is a Website Score?

Learn what the SiteIndex diagnostic score measures, how categories are weighted, and where its limits are.

The short answer

The SiteIndex Website Score is a diagnostic summary of publicly observable SEO, performance, security, accessibility, and technical signals. It is not a Google ranking score.

Step by step

  1. Open Website Score and enter a public HTTP or HTTPS URL.
  2. Review the overall score and category scores.
  3. Open failed and warning checks for specific recommendations.
  4. Fix the highest-impact issues, then run a new analysis.

Technical details

  • The analyzer checks one public page plus limited same-site robots.txt and sitemap resources. It applies category weights described in the methodology.

Common mistakes

  • Treating the score as a certification.
  • Assuming one page represents an entire site.
  • Ignoring the explanation behind a category score.

Limitations

  • It does not crawl an entire site, run a real-user performance study, or assess business content quality.

Related SiteIndex tool

Use Website Score for the practical check described here.

Open Website ScoreRead its documentation