All checks

Quality Metrics

Lighthouse scores for performance, accessibility, SEO and best practice

What it is

Runs Lighthouse against the page and reports its four scores: performance, accessibility, best practices and SEO. Each score comes with the individual audits behind it, so you can see exactly which checks passed and which failed.

Why it matters

A quick read on a site's technical health. The accessibility and SEO audits in particular tend to surface concrete, fixable problems rather than general advice.

Key terms

Performance Score
Google Lighthouse's score for how fast the page loads and becomes usable.
Accessibility Score
Google Lighthouse's score for how usable the page is for people with disabilities, such as screen reader users.
Best Practices Score
Google Lighthouse's score for modern web practices, from using HTTPS to avoiding outdated browser features.
SEO Score
Google Lighthouse's score for the basics that help search engines find and show a page.

Related checks