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Foundation adoption & performance trends

2 quarters of aggregate data

Unique domains per quarter

Foundation -- Unique domains per quarterFoundation -- Unique domains per quarter08.517.125.634.1Q2 '26Q3 '26

Median composite score

Foundation -- Median composite scoreFoundation -- Median composite score0255075100Q2 '26Q3 '26

Median Lighthouse performance

Foundation -- Median Lighthouse performanceFoundation -- Median Lighthouse performance0255075100Q2 '26Q3 '26

Median Lighthouse accessibility

Foundation -- Median Lighthouse accessibilityFoundation -- Median Lighthouse accessibility0255075100Q2 '26Q3 '26

How this is calculated

Each point is the median across all public Foundation audits completed that quarter. Quarters with fewer than 3 audits are skipped.

Learn more about our methodology →

Raw data

QuarterUnique domainsCompositePerformanceAccessibility
Q2 '2631734188
Q3 '263817987