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Bootstrap adoption & performance trends

2 quarters of aggregate data

Unique domains per quarter

Bootstrap -- Unique domains per quarterBootstrap -- Unique domains per quarter0233.5466.9700.4933.9Q2 '26Q3 '26

Median composite score

Bootstrap -- Median composite scoreBootstrap -- Median composite score0255075100Q2 '26Q3 '26

Median Lighthouse performance

Bootstrap -- Median Lighthouse performanceBootstrap -- Median Lighthouse performance0255075100Q2 '26Q3 '26

Median Lighthouse accessibility

Bootstrap -- Median Lighthouse accessibilityBootstrap -- Median Lighthouse accessibility0255075100Q2 '26Q3 '26

How this is calculated

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

Learn more about our methodology →

Raw data

QuarterUnique domainsCompositePerformanceAccessibility
Q2 '26849744687
Q3 '2617795284