Spark

Median of 3 presets · measured 18 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Mobile

Speed 61 · 39 points to gain

• −25 Largest Contentful Paint medium effort
• −6.1 First Contentful Paint medium effort
• −5.6 Speed Index medium effort
• −2.5 Cumulative Layout Shift medium effort

• 780 ms Avoid multiple page redirects low effort
• 600 ms Reduce unused JavaScript high effort
• 300 ms Reduce unused CSS high effort

SEO 92 · 8 points to gain

• −7.7 Links do not have descriptive text low effort

Accessibility 90 · 10 points to gain

• −4.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
• −4.3 Touch targets do not have sufficient size or spacing. medium effort
• −1.8 Heading elements are not in a sequentially-descending order medium effort

Best practices 96 · 4 points to gain

• −3.8 Browser errors were logged to the console medium effort

Desktop

Speed 86 · 14 points to gain

• −9 Largest Contentful Paint medium effort
• −3.3 Speed Index medium effort
• −0.8 Cumulative Layout Shift medium effort
• −0.5 First Contentful Paint medium effort

• 230 ms Avoid multiple page redirects low effort
• 160 ms Reduce unused JavaScript high effort

SEO 92 · 8 points to gain

• −7.7 Links do not have descriptive text low effort

Accessibility 92 · 8 points to gain

• −3.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
• −3.5 Touch targets do not have sufficient size or spacing. medium effort
• −1.5 Heading elements are not in a sequentially-descending order medium effort

Best practices 96 · 4 points to gain

• −3.8 Browser errors were logged to the console medium effort